1 John 3:19-21

By this we will know [without any doubt] that we are of the truth, and will assure our heart and quiet our conscience before Him whenever our heart convicts us [in guilt]; for God is greater than our heart and He knows all things [nothing is hidden from Him because we are in His hands]. Beloved, if our heart does not convict us [of guilt], we have confidence [complete assurance and boldness] before God