'Seen' in the Bible

This is what we proclaim to you: 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 that was with the Father and was revealed to us).

What we have seen and heard we announce to you too, so that you 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 yet hates his fellow Christian, he is a liar, because the one who does not love his fellow Christian whom he has seen cannot love God whom he has not seen.