Jamieson, Fausset & Brown

No man--"No one," in the widest sense. hath seen God--by immediate gaze, or direct intuition. in the bosom of the Father--A remarkable expression, used only here, presupposing the Son's conscious existence distinct from the Father, and expressing His immediate and most endeared access to, and absolute acquaintance with, Him. he--emphatic; As if he should say, "He and He only hath declared Him," because He only can.