New Living Translation
And he has given us this command: Those who love God must also love their fellow believers.

American Standard Version
And this commandment have we from him, that he who loveth God love his brother also.

Berean Study Bible
And we have this commandment from Him: Whoever loves God must love his brother as well.

Douay-Rheims Bible
And this commandment we have from God, that he, who loveth God, love also his brother.

English Revised Version
And this commandment have we from him, that he who loveth God love his brother also.

King James Bible
And this commandment have we from him, That he who loveth God love his brother also.

World English Bible
This commandment we have from him, that he who loves God should also love his brother.

Young's Literal Translation
and this is the command we have from Him, that he who is loving God, may also love his brother.

1 John 4:21 Additional Translations ...