Charles Spurgeon Commentary Jonah 1:15-16

"So they took up Jonah, and cast him forth into the sea; and the sea ceased from its raging. Then the men feared Jehovah exceedingly; and they offered a sacrifice unto Jehovah, and made vows." — Jonah 1:15-16 (ASV)

And cast him forth into the sea: and the sea ceased from her raging. Then the men feared the LORD exceedingly, and offered a sacrifice unto the LORD, and made vows.

Jonah had been the means of causing a greater change than he expected. His conduct and punishment had been a warning to those thoughtless sailors. They could not but believe in the God who had thus followed up his fugitive servant.