Thematic Bible: Qualified by God

Then I said, Woe is me! For I am undone, because 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, LORD of hosts. Then one of the seraphim flew to me, having a live coal in his hand, which he had taken with the tongs from off the altar. And he touched my mouth with it, and said, Lo, this has touched thy lips, and thine iniquity is taken away, and thy sin forgiven.

not that we are sufficient of ourselves to reckon anything as from ourselves, but our sufficiency is from God, who also made us qualified helpers of a new covenant, not of a document, but of a spirit, for the document kills but the spirit makes alive.