Why God Visited Abraham at Mamre
God's visit to Abraham was not a reward for hospitality but the renewal of a promise. The announcement of a son at a set time turns the question of human impossibility into a display of God's faithfulness.
Genesis 18:1–8: Three Visitors at Abraham's Tent
Genesis 18:1–8 records a visible visit: three travelers stand near Abraham's tent, he runs to serve them, and they eat. The scene teaches reverent hospitality and God's promise, not a technique for detecting angels among us.