It is plain that Jonah is the man for whose sake this evil is upon them, but the discovery of him to be so was not sufficient to answer the demands of this tempest; they had found him out, but something more was to be done, for still the sea wrought and was tempestuous (v. 11), and again (v. 13), it grew more and more tempestuous (so the margin reads it); for if we discover sin to be the cause of our troubles, and do not forsake it, we do but make bad worse. Therefore they went on with the prosecution.