1 John 5:2

2 This is how we know that we love the children of God: by loving God and carrying out his commands.

Read 1 John 5:2 Using Other Translations

By this we know that we love the children of God, when we love God, and keep his commandments.
By this we know that we love the children of God, when we love God and obey his commandments.
We know we love God’s children if we love God and obey his commandments.