20 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.
1 John 4:20 Cross References - LEB
1 Peter 1:8
8 whom, although you* have not seen, you love; in whom now you believe, although you* do not see him, and you rejoice greatly with joy inexpressible and full of glory,
1 John 1:6
6 If we say that we have fellowship with him and walk in the darkness, we lie and do not practice the truth.*
1 John 2:4
4 The one who says "I have come to know him," and does not keep his commandments is a liar, and the truth is not in this person.
1 John 2:9
9 The one who says he is in the light and hates his brother is in the darkness until now.
1 John 2:11
11 But the one who hates his brother is in the darkness, and walks in the darkness, and does not know where he is going, because the darkness has blinded his eyes.
1 John 3:17
17 But whoever has the world's material possessions and observes his brother ⌊in need⌋* and shuts his heart against him, how does the love of God reside in him?
1 John 4:12
12 No one has seen God at any time. If we love one another, God resides in us and his love is perfected in us.