1 John 3:19

19 This is how we know that we belong to the truth and how we set our hearts at rest in his presence:

Read 1 John 3:19 Using Other Translations

And hereby we know that we are of the truth, and shall assure our hearts before him.
By this we shall know that we are of the truth and reassure our heart before him;
Our actions will show that we belong to the truth, so we will be confident when we stand before God.