Moreover, the One who triumphs within Israel will not spare, and he will not be moved to repentance. For he is not a man, that he should repent.
Other versions
King James Version
And also the Strength of Israel will not lie nor repent: for he is not a man, that he should repent. English Standard Version
And also the Glory of Israel will not lie or have regret, for he is not a man, that he should have regret."New International Version
He who is the Glory of Israel does not lie or change his mind; for he is not a man, that he should change his mind."