John 1:18
No one has ever seen God [i.e., His full splendor], but God, the only conceived [and eventually born Son], who is at the Father's side, has shown us who He is.
1 Timothy 6:16
He alone possesses immortality [Note: That is, only God possesses an eternal existence, with neither beginning nor ending. See John 5:26], and lives in unapproachable light. No one has seen Him, or can see Him. May there be honor and never ending power to Him. May it be so.
1 Corinthians 13:12
For now [i.e., during the church's infant state] we see in a mirror [Note: God's word is elsewhere likened to a mirror. See James 1:22-25] indistinctly [i.e., because of having only partial knowledge and prophecy], but then [i.e., when the church matures and has the completed Scriptures], we will see face to face [i.e., clearly]. Now I have [only] partial knowledge, but then I will have full knowledge, just as [God has] full knowledge of me.