Instead of human wisdom, Paul presented proof (demonstration
) of the presence of God’s Spirit and power. This proof lay in the signs and wonders that Paul performed among the Gentiles (see Romans 15:18–19). Signs and wonders were a sign of apostleship (2 Corinthians 12:12).
4 and my speech and my message were not in plausible words of wisdom, but in demonstration of the Spirit and of power,