As the truth of Christ is in me, no man shall stop me of this boasting in the regions of Achaia.
Ver. 10. As the truth of Christ is in me] He confirms it with an oath, that he will not take a penny of them while he preacheth in those parts. A minister should be careful of whom he receives a kindness. Note further from this text, that lawful things, when they prove inexpedient and gravaminous, may be forborne by the bond of a covenant.