They that observe lying vanities, &c. They that seek to, or trust in, idols, (often called by the names of vanity and lies,) forsake their own mercy Forsake him who alone is able to show mercy to them, and preserve them in time of danger: who, to all that depend upon him, is an eternal fountain of mercy, even a fountain of living waters which flow freely to all that seek unto him for them. But I will sacrifice unto thee, &c. I will offer to thee those thanks which I solemnly promised to pay in the time of my trouble, and which will be as acceptable to thee as the sacrifices of slain beasts.
Related Commentaries of Jonah 2:8
Jonah 2:8-9
8 They that observe lying vanities forsake their own mercy.
9 But I will sacrifice unto thee with the voice of thanksgiving; I will pay that that I have vowed. Salvation is of the LORD.