Turn ye unto him— This address of the prophet to the Jews is both monitory of the duty, without which this divine benefit of protection and deliverance would not be conferred, and prophetical, wherein he teaches, that God would offer to them, and that they would as a nation at that time receive the grace of repentance from idolatry, that they might obtain this blessing agreeably to the laws of divine Providence and grace. The admonition immediately respects the Jews, in opposition to the Ephraimites, strictly called the children of Israel; and the sense is this: "When, therefore, God shall grant unto you, Jews, the inhabitants of Sion and Jerusalem, the hope of so great a benefit, that he will protect you by his own right hand against the Assyrians, (which the prophet foretold should come to pass;) then turn you in true repentance unto him, from whom the Ephraimites, seeking help from Egypt, in contempt and neglect of his aid, have most deeply revolted; and place your confidence not in the Egyptians, but in Jehovah himself; which the Ephraimites have neglected to do. Nay, the more grievously they have sinned, and the further they have departed from God, so much the more sincerely do you repent, and unite yourselves the more closely to him." The prophet immediately adds, that this admonition should have its effect, and that the Jews, reduced to straits by the Assyrians, should cast away their domestic idols; and of course should cease to place any confidence in them; returning to their God, and trusting only in him. See Vitringa.
Related Commentaries of Isaiah 31:6
Isaiah 31:6-7
6 Turn ye unto him from whom the children of Israel have deeply revolted.
7 For in that day every man shall cast away his idols of silver, and his idols of gold, which your own hands have made unto you for a sin.