John 17: Jesus Prays for Unity and Glory
Jesus' prayer in John 17 traces everything back to the Father's prior giving of a people to the Son. The unity he asks for is patterned on the mutual indwelling of the Father and the Son, and it aims outward, that the world may believe and know the Father sent him.
John 17: Jesus Prays for Glory, Keeping and Unity
Jesus' prayer in John 17 asks the Father to glorify him so that eternal life may be given to those who belong to him, then turns to keeping, sanctifying and uniting them while they stay in a hostile world. Their security rests on his request, not on their strength.
John 17:3: Eternal Life Is Knowing God
Jesus does not define eternal life as a length of time or a place to reach. He defines it as knowing the only true God and the one he sent, a life the Son gives now by the Father's authority.