Albert Barnes' Notes on the Whole Bible - Jonah 2:9
But (And) with the voice of thanksgiving will I (would I fain) sacrifice unto Thee; what I have vowed, I would pay - He does not say, I will, for it did not depend upon him. Without a further miracle of God, he could do nothing. But he says, that he would nevermore forsake God. The law appointed sacrifices of thanksgiving; Leviticus 7:12-15. these he would offer, not in act only, but with words of praise. He would “pay what he had vowed,” and chiefly himself, his life which God had given back... read more
The Pulpit Commentary - Jonah 2:9
Thankfulness. "Thankfulness opens the door of mercy, sets God's goodness free to be good to us, prepares us to receive blessing." It should be cultivated. It should be expressed. "The voice of thanksgiving." Jonah was thankful. He had strong reason indeed to be. He paid the vows he had made. "Be ye thankful." Every mercy is an incentive to thankfulness. And God's mercies, "new every morning and repeated every evening," and pauseless in their coming, "cannot be reckoned up." And all... read more