Treasury of Scripture Knowledge

Summary

If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen?

Bible References

A man

1 John 2:4
He who says: I know him, and does not obey his commandments is a liar! The truth is not in him.
1 John 3:17
Whoever has this world's goods and sees his brother in need, and shuts up his compassion from him, how does the love of God dwell in him?

Not

1 John 4:12
No one has seen God at any time! If we love one another, God lives with us, and his love is perfected (accomplished) (matured) through us.

General references

Matthew 22:40
The law and the prophets are based on these two commandments.
Matthew 25:42
I was hungry and you did not feed me. I was thirsty and you did not give me drink.
John 13:35
All men will know that you are my disciples if you have love for one another.
John 14:15
If you love me, you will keep (obey) my commandments!
Hebrews 13:1
You should continue to love one another as brothers.