D.A. Carson on John 1:18: “No one has ever seen God… He has made Him known”:
“This Word-made-flesh, himself God, is nevertheless differentiable from God, and as such is intimate with God; as man, as God’s incarnate Self-expression, he has made God known.… From this Greek term [Gk: exegesato, “to make known”], we derive ‘exegesis’: we might almost say that Jesus is the exegesis of God. Elsewhere in the New Testament the verb means to ‘tell a narrative’ or ‘to narrate’ (Lk. 24:35; Acts 10:8; 15:12, 14; 21:19). In that sense we might say that Jesus is the narration of God. ‘As Jesus gives life and is life, raises the dead and is the resurrection, gives bread and is bread, speaks truth and is the truth, so as he speaks the word he is the Word.'”
D.A. Carson, The Gospel According to John (PNTC) (Grand Rapids: Eerdmans Publishing, 1991), 135.