1John.2.5

But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.

1John.2.5

But the one who keeps God's word is the person in whom we see God's mature love. This is the only way to be sure we're in God.

1John.2.5

But if anyone obeys his word, God's love is truly made complete in him. This is how we know we are in him:

1John.2.5

But whoever keeps His word, truly the love of God is perfected in him. By this we know that we are in Him.