'Competent' in the Bible

To some we are an aroma of death leading to death, but to others, an aroma of life leading to life. And who is competent for this?

It is not that we are competent in ourselves to consider anything as coming from ourselves, but our competence is from God.

He has made us competent to be ministers of a new covenant, not of the letter, but of the Spirit. For the letter kills, but the Spirit produces life.