'Seen' in the Bible

That which was from the beginning, that which we have heard, which we have seen with our eyes; that which we contemplated, and our hands handled, concerning the word of life;

(and the life has been manifested, and we have seen, and bear witness, and report to you the eternal life, which was with the Father, and has been manifested to us:)

that which we have seen and heard we report to you, that ye also may have fellowship with us; and our fellowship is indeed with the Father, and with his Son Jesus Christ.

Whoever abides in him, does not sin: whoever sins, has not seen him or known him.

No one has seen God at any time: if we love one another, God abides in us, and his love is perfected in us.

And we have seen, and testify, that the Father has sent the Son as Saviour of the world.

If any one say, I love God, and hate his brother, he is a liar: for he that loves not his brother whom he has seen, how can he love God whom he has not seen?