'Seen' in the Bible

What was from the beginning, what we have heard, what we have seen with our eyes, what we have looked at and our hands have touched, concerning the word of life--

and the life was revealed, and we have seen and testify and announce to you the eternal life which was with the Father and was revealed to us--

what we have seen and heard, we announce to you also, in order that you also may have fellowship with us, and indeed our fellowship [is] with the Father and with his Son Jesus Christ.

Everyone who resides in him does not sin. Everyone who sins has neither seen him nor known him.

No one has seen God at any time. If we love one another, God resides in us and his love is perfected in us.

And we have seen and testify that the Father has sent the Son [to be the] Savior of the world.

If anyone says, "I love God," and hates his brother, he is a liar, for the one who does not love his brother whom he has seen is not able to love God whom he has not seen.