2 Corinthians 3:5-6
5 Not that we are competent in ourselves to claim anything for ourselves, but our competence comes from God.
6 He has made us competent as ministers of a new covenant--not of the letter but of the Spirit; for the letter kills, but the Spirit gives life.

We need to be competent (efficient and capable). God has made us competent as ministers of a new covenant. The letter is the law in its outward sense, written on tablets of stone. The letter of the law came by the old covenant.

In the new covenant, the indwelling Spirit becomes for us a law written on our hearts. He is in us to guide us and be our law. However, the Spirit and the letter are not enemies. They both work together but what came through Spirit is superior. The Spirit gives life.

Application

Are you competent as ministers (minister means servant)? Think about the areas you need to grow in being an efficient minister (servant) of God and pray for Holy Spirit to make you a competent minister.