1 John 3:19 in the World English Bible
And by this we know that we are of the truth and persuade our hearts before him,
Context
18 My little children, let us not love in word, neither in tongue; but in deed and in truth.
19 And hereby we know that we are of the truth, and shall assure our hearts before him.
20 For if our heart condemn us, God is greater than our heart, and knoweth all things.