Thematic Bible: Qualified by God

I said, "Too bad for me! I am destroyed, for my lips are contaminated by sin, and I live among people whose lips are contaminated by sin. My eyes have seen the king, the Lord who commands armies." But then one of the seraphs flew toward me. In his hand was a hot coal he had taken from the altar with tongs. He touched my mouth with it and said, "Look, this coal has touched your lips. Your evil is removed; your sin is forgiven."

Not that we are adequate in ourselves to consider anything as if it were coming from ourselves, but our adequacy is from God, who made us adequate to be servants of a new covenant not based on the letter but on the Spirit, for the letter kills, but the Spirit gives life.