Thematic Bible: Qualified by God

Then I said, Woe is me! For I am undone; for I am a man of unclean lips, and I dwell in the midst of a people of unclean lips; for my eyes have seen the King, Jehovah of Hosts. Then one of the seraphs flew to me, having a live coal in his hand, snatched with tongs from the altar. And he laid it on my mouth and said, Lo, this has touched your lips; and your iniquity is taken away, and your sin purged.

not that we are sufficient of ourselves to think anything as of ourselves, but our sufficiency is of God; who also has made us able ministers of the new covenant; not of the letter, but of the spirit; for the letter kills, but the Spirit makes alive.