ISB ~ 1 John 3 v19 - 20

These verses are difficult to translate. Another possibility is:”By this we shall know that we are of the truth, and we shall persuade our hearts before him, if our hearts condemn us, that God is greater than our hearts and knows everything.” The idea seems to be that Christians, despite being conscious of their shortcomings in life, can stand before God at the Judgment with confidence in the superabundance of his mercy.