TSK · 1 John 4:7

This is eternal life, that they should know you, the only true God, and him whom you sent, Jesus Christ.

But now that you have come to know God, or rather to be known by God, why do you turn back again to the weak and miserable elemental principles, to which you desire to be in bondage all over again?

But concerning brotherly love, you have no need that one write to you. For you yourselves are taught by God to love one another,

Seeing you have purified your souls in your obedience to the truth through the Spirit in sincere brotherly affection, love one another from the heart fervently:

If you know that he is righteous, you know that everyone who practices righteousness is born of him.

He who doesn't love doesn't know God, for God is love.

If a man says, "I love God," and hates his brother, he is a liar; for he who doesn't love his brother whom he has seen, how can he love God whom he has not seen?