3:5-9 The ministers about whom the Corinthians contended, were only instruments used by God. We should not put ministers into the place of God. He that planteth and he that watereth are one, employed by one Master, trusted with the same revelation, busied in one work, and engaged in one design. They have their different gifts from one and the same Spirit, for the very same purposes; and should carry on the same design heartily. Those who work hardest shall fare best. Those who are most faithful shall have the greatest reward. They work together with God, in promoting the purposes of his glory, and the salvation of precious souls; and He who knows their work, will take care they do not labour in vain. They are employed in his husbandry and building; and He will carefully look over them.
7. neither is he that … anything … but God—namely, is all in all. "God" is emphatically last in the Greek, "He that giveth the increase (namely), God." Here follows a parenthesis, 1Co 3:8-21, where "Let no man glory in men" stands in antithetic contrast to "God" here.