Then Jonah prayed to Yahweh, his God, out of the fish's belly.
      5. He gives warning to others, and instructs them to keep close to God (Jonah 2:8; Jonah 2:8): Those that observe lying vanities forsake their own mercy, that is, (1.) Those that worship other gods, as the heathen mariners did, and call upon them, and expect relief and comfort from them, forsake their own mercy; they stand in their own light; they turn their back upon their own happiness, and go quite out of the way of all good. Note, Idols are lying vanities, and those that pay that homage to them which is due to God only act as contrarily to their interests as to their duty. Or, (2.) Those that follow their own inventions, as Jonah himself had done when he fled from the presence of the Lord to go to Tarshish, forsake their own mercy, that mercy which they might find in God, and might have such a covenant-right and title to it as to be able to call it their own, if they would but keep close to God and their duty. Those that think to go any where to be from under the eye of God, as Jonah did--that think to better themselves by deserting his service, as Jonah did--and that grudge his mercy to any poor sinners, and pretend to be wiser than he in judging who are fit to have prophets sent them and who are not, as Jonah did--they observe lying vanities, are led away by foolish groundless fancies, and, like him, they forsake their own mercy, and no good can come of it. Note, Those that forsake their own duty forsake their own mercy; those that run away from the work of their place and day run away from the comfort of it.