John 17:3: Eternal Life Is Knowing God
Short answer: In John 17:3 Jesus prays, "This is eternal life, that they should know you, the only true God, and him whom you sent, Jesus Christ." Eternal life, then, is not first a duration or a destination but a relationship with God, and that relationship comes through the Son the Father sent. Because the Son gives it to those the Father has given him, it is a present possession, not only a future hope.
A prayer spoken aloud, and what it says eternal life is
John 17 comes at the end of a long evening. Jesus has washed feet, spoken of his departure, and told his disciples to remain in him, and now he stops speaking to them and speaks to his Father with the disciples still listening. He lifts his eyes to heaven, a posture of prayer his hearers would recognize, and begins with the hour having come. The Gospel writer preserves this prayer for readers who were not in the room, so we overhear what was first prayed aloud. Its shape is address, not instruction: Jesus asks, and in asking he explains. He prays for himself, then for the men with him, then for those who would believe through their word.
The opening request is not for safety or relief but for glory, and 17:2 supplies the reason. The Father gave the Son authority over all flesh, and the purpose of that authority is to give eternal life to all whom the Father has given him. So the prayer moves from glory to gift to definition. Verse 3 then answers a question the reader has not yet asked out loud: what is this eternal life he gives? Not a location, not a length of days, but a knowing. The setting is Jewish monotheism, the confession that God is one, and here that confession is joined to the one God has sent. Eternal life is the Father's gift, the Son's to give, and bound to his mission.
Verses 4 and 5 frame that definition from both sides. Jesus looks back on work accomplished and forward to glory he shared with the Father before the world existed. The prayer is therefore not a detached definition dropped into a discourse; it sits inside a mission being completed and a glory being restored. That matters for how verse 3 is read. Knowing God here is not a technique for producing a feeling of closeness, and the text does not promise that a particular emotional experience will follow. It defines a gift that can be trusted in seasons when nothing feels near, because the one who gives it has authority to give it and has finished what he came to do.
Eternal life is knowing the Father and the Son
Jesus does not describe eternal life as a place we go to later or a feeling we work up now. He defines it: knowing the only true God and the one he sent. The word know here carries the ordinary sense of personal acquaintance, the way you know a friend rather than the way you know facts about a stranger. Eternal life is placed in the same sentence as that knowing, so the two are joined. The life consists in the knowing. It is not a preliminary step toward something better that comes afterward.
The phrase the only true God echoes Israel's ancient confession that there is one God, and Jesus sets it beside him whom you sent, Jesus Christ, naming the Father and the Son together in one breath. The word sent matters. It marks the Son as one who comes with the Father's commission and speaks on his authority, so to know Jesus is not to know a separate figure but the one the Father sent. The verse will not let us claim the Father while dismissing the Son, or chase the Son while ignoring the Father who sent him.
This definition steadies us when faith feels dry. Jesus prays these words on the night before the cross, and he speaks of a life that is given, not manufactured by our best moods. If eternal life is knowing the Father and the Son, then that life may be trusted even in seasons when no warmth attends it, because it rests on who God is and what he has done, not on the intensity of our experience. The comfort is real, though the text does not promise that a particular feeling of closeness will follow. It promises a knowing that outlasts feeling.
Jesus defines eternal life as knowing God
Jesus has just lifted his eyes to heaven and asked the Father to glorify him, and in John 17:2 he explains why: authority over all flesh has been given to him so that he may give eternal life to all whom the Father has given him. Verse 3 then tells us what that life is. It is not first a length of time or a place we go later. Jesus defines it as knowing the only true God and the one he sent. The gift is personal acquaintance with the Father and the Son, and it comes from the Son's hand.
The setting is Jewish monotheism, the daily confession that God is one. Jesus takes that confession and joins it to himself as the one the Father sent, so that knowing God and knowing the sent Son are named together in a single sentence. Notice the shape of the prayer around it. The Father gives a people to the Son, the Son has authority to give them life, and that life consists in knowing the God who sent him. Eternal life is therefore a present possession, received through the Son, not merely a future hope we wait to feel.
Because the text defines this life as knowing the Father and the Son, it does not promise a particular emotional experience or a sense of closeness. Some seasons feel warm and some feel dry, and neither one is the measure of the gift. What anchors us is that the Father gave, the Son has authority to give, and he names this knowing as the life itself. Verses 4 and 5 look back on finished work and forward to glory shared before the world existed, which means our confidence rests on who Jesus is and what he has done, not on how near he feels today.
Where readers disagree about knowing God
One disagreement turns on how to describe the knowing in John 17:3. Some readers stress that knowing God is relational, something entered and sustained over time, closer to trusting a person than mastering a fact. Others stress the grammar of gift: the Son receives authority and gives eternal life to those the Father gives him, so this knowledge is received, not achieved. The verse itself holds both without choosing between them. It names knowing as the content of a gift, which rules out boasting, and it names a Father and a Son, which rules out a vague spirituality. What stays central is that eternal life is defined by knowing the Father and the one he sent.
A second disagreement concerns timing. Some readers treat eternal life as a present possession, since Jesus says this is eternal life in the same breath as the giving. Others emphasize that the prayer moves toward future glory, asking for the glory held before the world existed. The text does not settle the schedule. It speaks of life as something the Son gives, and the wider prayer holds present knowledge and future glory together. Pastors should be careful here: the verse defines life by knowing God, not by a felt closeness. A believer in a dry season may still trust the gift, because the gift rests on the Son's authority rather than on the temperature of the heart.
A third question is how this knowing relates to ordinary means. Some emphasize Word and sacrament gathered with the church; others emphasize personal devotion and prayer. The verse does not prescribe a method, and readers who press it into a rule for one practice go beyond what it says. What the text does say is that this knowledge comes from the Father through the Son he sent, so no method earns it. The church's ordinary means are places where that gift is received and nourished, not levers that produce an experience. Across these differences, the center holds: eternal life is knowing the Father and the Son, given rather than discovered.
Knowing God means knowing the Son he sent
In John 17:3 Jesus defines eternal life in a way that surprises anyone expecting a feeling or a future destination. He says it is this: knowing the only true God, and knowing the one he sent, Jesus Christ. The two are held together in a single sentence, not listed as separate items. You cannot have the Father on your own terms and leave the Son out, nor can you claim the Son while ignoring the Father who sent him. The verse sits inside a prayer, spoken aloud with his eyes lifted to heaven, and it names him as the sent one in the very act of addressing the sender.
The prayer makes clear where this knowledge comes from. In 17:2 Jesus says the Father gave him authority over all flesh, and that he gives eternal life to those the Father has given him. Knowing God is therefore a gift handed out by the Son, not a rung we climb. The work he says he has accomplished in 17:4 stands behind the request, and the cross and resurrection are that accomplishment. Access to the Father is his gift, purchased and delivered, not our attainment. That is why the gospel is not a technique for spiritual experience but a person to be known, and why coming to the Father means coming through the one he sent.
This matters most in seasons when nothing feels close. It is easy to read a verse about knowing God as a promise that a particular warmth or sense of nearness will follow, and then to doubt everything when it does not. But the text does not define eternal life by the intensity of our experience. It defines it by the Father and the Son, known through the one who was sent. That is a gift you may trust when your feelings are dry, because it rests on his work and not on your awareness. You are still holding the person the verse names.
Knowing the Father and the Son he sent
Read John 17:3 slowly and notice what it does not ask of you. It does not ask you to manufacture a feeling of closeness or to work up an experience. Jesus defines eternal life as knowing the only true God and the one he sent. That is a relationship with a person, not a mood you can produce on demand. So begin where the verse begins: ask God to make himself known through his Son. Prayer that says plainly, show me who you are, is not a technique for inducing warmth. It is the honest request of someone who has been given a gift and wants to receive it.
Then use ordinary means with patience. Scripture, prayer, and the company of other believers are the plain channels God has always used, and they tend to produce growth over years rather than in a single evening. Watch for a quiet substitution: pursuit of God bending into pursuit of information about him, or into pursuit of emotional relief from him. Both can crowd out the person himself. When you notice it, turn again toward the Father and the Son he sent. Grace is the ground of that turning, not the reward for it, so you can return without shame as often as you need to.
Because Jesus says the Son gives eternal life to those the Father has given him, your standing rests on his authority rather than on the intensity of your awareness. Some seasons feel close and some feel dry, and the verse does not promise that a particular sense of nearness will follow your efforts. It promises life in knowing God, a gift that can be trusted when you feel nothing at all. Rest in that gift, keep asking to know him, and leave the timing of growth to him rather than to a schedule you set.
Biblical fidelity check
Reading John 17:3 carefully means noticing that it sits inside a prayer, not a lecture, so the words are addressed to the Father and describe what the Son gives. The risk is treating the sentence as a definition we master rather than a gift we receive. The word know means personal acquaintance, not command of facts about someone. The phrase the only true God carries Israel's confession of one God, and it is set beside him whom you sent, Jesus Christ, so Father and Son are named together. The word sent marks the Son as one who comes with the Father's commission.
Evangelical readers differ over how to describe this knowing. Some stress that it is relational knowledge to be entered and sustained; others stress that it is a gift given by the Son's authority, not a human achievement. Readers also differ on how far eternal life is already possessed now rather than fully enjoyed later, and on how this knowing relates to Word and sacrament, personal devotion, or both. What stays central is that eternal life is defined by knowing the Father and the Son he sent, and that this knowledge comes as a gift rather than a discovery.
Reading John 17:3 alongside other passages
To see how this prayer frames the Son's authority and glory, read the surrounding verses in John 3:13 Meaning: The Son of Man Who Descended and Revelation 10: The Little Book John Eats, Explained. For the wider biblical theme of knowing God, compare John Locke and Colossians 2:8: Testing Every Philosophy and 2 Timothy 4:1-4: Preach the Word in Every Season.
Frequently asked questions
What does it actually mean to know God, rather than just know things about him?
In John 17:3 Jesus defines eternal life as knowing the only true God and the one he sent, so knowing God is a relationship with him through Christ, not merely correct information about him. The verse ties this knowledge to Jesus himself, since the Father is known through the Son he sent. Knowing about God stops at facts we hold; knowing God means coming to him through Christ and belonging to him. Jesus prays this as the goal of his whole mission.
Why does Jesus describe eternal life as knowing God, instead of as something that begins only after we die?
Jesus defines eternal life here as knowing the only true God and the one he sent, so it begins now rather than waiting for death. He prays this in the same breath as asking for glory, tying life to relationship with the Father and the Son. Knowing God is not bare information but a real connection to the God who gives it. Because the Son has authority over all flesh to give this life, it is his gift, received by knowing him.
How can I grow in knowing God when I feel spiritually dry?
Jesus defines eternal life not as a feeling but as knowing the only true God and the one he sent, so dryness does not cancel that knowing. Growth comes by returning to who God has shown himself to be in Christ, not by manufacturing an experience. Keep coming to the Father through Jesus, honestly bringing your dryness, and let this verse set your direction. Feelings vary; the God you are coming to does not.
