1. That some of the Jewish nation should, by the grace of God, be distinguished form the rest, and marked for salvation: I will not only set up a gathering ensign among them, to which the Gentiles shall seek (as is promised, ch. xi. 12), but there shall be those among them on whom I will set a differencing sign; for so the word signifies. Though they are a corrupt degenerate nation, yet God will set apart a remnant of them, that shall be devoted to him and employed for him, and a mark shall be set upon them, with such certainty will God own them, Ezek. ix. 4. The servants of God shall be sealed in their foreheads, Rev. vii. 3. The Lord knows those that are his. Christ's sheep are marked.