The accusations of the voices we hear on a daily basis are deafening. There is no shortage of voices that will remind us of our failures. If God can choose to speak even through the mouth of an ass to get his message across, it seems that Satan has an abundance to choose from for his message.
In Galatians 1, Paul writes about the gifts that Jesus gives. Gifts that aren't waiting for our performance or lack of failures, gifts that rely only on the work of the Giver:
"Grace to you and peace from God our Father and the Lord Jesus Christ, who gave himself for our sins to deliver us from the present evil age, according to the will of our God and Father, to whom be the glory forever and ever. Amen"
Grace and peace - grace that forgives even the worst of sins and peace that quiets even the loudest of voices. Unfortunately, this doesn't come without Satan fighting against peace with burdened consciences.