2 Corinthians 6:7

in the word of truth, in the power of God [If Paul had kept his private life in fit condition for the ministry, he had likewise demeaned himself publicly as a true apostle. If he had kept his heart loyal to the truth, he had likewise kept his tongue faithful to the proclamation of it. In exercising discipline he had manifested the fullness of the power of God which was in him-- 2 Corinthians 4:7; 1 Corinthians 2:4-5; 1 Corinthians 4:19-21; Acts 13:9-12]; by the armor of righteousness on the right hand and on the left [The armor of the right hand was offensive, and that of the left was defensive. As a true minister of Christ engaged in the Christian warfare, Paul knew how to strike so as to discipline all real offenders, and he also was well able to defend himself against the attacks of unchristian Jews, etc., and false brethren, who assailed his character as they had here at Corinth],