THE SUFFICIENCY OF THE OLD (SELF) VS. SUFFICIENCY FROM GOD
“Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God” [2 Cor 3:5 ESV]
In his defense, Paul doesn't think of himself as sufficient. Everything that has been accomplished by him has been accomplished by God. Remember Moses rejected God’s call to lead the people from Egypt five times (5x!) because he felt insufficient and every time he rejected God’s call, God responded with a promise of His very presence. Jeremiah felt he was insufficient and tried to disqualify himself from the prophetic office. Just as before, God promised His presence.