1 John 4:8

he that loveth not hath not known God; for God is love.

2 Corinthians 13:11

Finally, brethren, farewell! Be perfect, be of good comfort, be of one mind, live in peace; and the God of love and peace shall be with you.

1 John 1:5

And this is the message which we have heard from him, and announce to you, that God is light, and in him is no darkness at all.

1 John 4:16

And we have known and believed the love that God hath in regard to us. God is love; and he that dwelleth in love dwelleth in God, and God in him.

John 8:54-55

Jesus answered, If I glorify myself, my glory is nothing. It is my Father that glorifieth me, of whom ye say, He is our God:

Ephesians 2:4

but God, who is rich in mercy, on account of his great love wherewith he loved us, gave to us,

Hebrews 12:29

For our God is a consuming fire.

1 John 2:4

He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.

1 John 2:9

He that saith he is in the light, and hateth his brother, is in the darkness until now.

1 John 3:6

Whoever abideth in him sinneth not; whoever sinneth hath not seen him, nor known him.

1 John 4:7

Beloved, let us love one another; for love is from God, and every one that loveth hath been born of God, and knoweth God;

Treasury of Scripture Knowledge

Summary

He that loveth not knoweth not God; for God is love.

Bible References

Knoweth

1 John 2:4
He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him.
1 John 3:6
Whoever abideth in him sinneth not; whoever sinneth hath not seen him, nor known him.
John 8:54
Jesus answered, If I glorify myself, my glory is nothing. It is my Father that glorifieth me, of whom ye say, He is our God:

God is

1 John 1:5
And this is the message which we have heard from him, and announce to you, that God is light, and in him is no darkness at all.
2 Corinthians 13:11
Finally, brethren, farewell! Be perfect, be of good comfort, be of one mind, live in peace; and the God of love and peace shall be with you.
Ephesians 2:4
but God, who is rich in mercy, on account of his great love wherewith he loved us, gave to us,
Hebrews 12:29
For our God is a consuming fire.

General references

Matthew 22:40
On these two commandments hang all the Law and the Prophets.
John 15:13
Greater love hath no one than this, that he lay down his life for his friends.
1 Corinthians 16:14
let all your doings be in love.
Hebrews 13:1
Let brotherly love continue.