2 Corinthians 3:4-6 - Paul's Competence
4 Such is the confidence and steadfast reliance and absolute trust that we have through Christ toward God. 5 Not that we are sufficiently qualified in ourselves to claim anything as coming from us, but our sufficiency and qualifications come from God. 6 He has qualified us [making us sufficient] as ministers of a new covenant [of salvation through Christ], not of the letter [of a written code] but of the Spirit; for the letter [of the Law] kills [by revealing sin and demanding obedience], but the Spirit gives life.