For if I do this thing willingly, I have a reward: but if against my will, a dispensation of the gospel is committed unto me.
Ver. 17. I have a reward] Yet not earned, but of free grace, God crowning his own works in us. He was a proud Papist that said, Caelum gratis non accipiam, I will not have heaven for nought. (Vega.) And he another, that said, Opera bona mercatura regni caelestis, Good works are the price of heaven. (Bellarm.) God will cast all such merit merchants out of his temple.
But if against my will] Virtus nolentium, nulla est. God will strain upon no man. All his servants are a free people, Psalms 110:3. All his soldiers volunteers. They fly to their colours as the doves to their windows, Isaiah 60:8 .