Thy people [shall be] willing in the day of thy power, in the beauties of holiness from the womb of the morning: thou hast the dew of thy youth.
Ver. 3. Thy people shall be willing] All Christ's subjects are volunteers, free hearted, like those isles that wait for God's law, Isa 42:8 Zechariah 8:21. They love to be his servants, Isaiah 56:6. Lex voluntarios quaerit, saith Ambrose.
In the day of thy power] Copiarum tuarum, of thine army, or of thy militia, when thou shalt lead on thy Church militant, and be in the head of them, conquering and to conquer, Revelation 6:2. Some understand it to be the Christian sabbath day.
In the beauties of holiness] i.e. In Church assemblies, in the beauty of holy ordinances, at the administration whereof, Christ's birth dew, that is, the influence of his Spirit and his presence in those ordinances, is from the womb of the morning, i.e. is of that generating and enlivening virtue that the dew of the teeming morning is to the seeds and plants of the earth. An apt similitude both to express the multitude of Christ's converts, and the manner of their heavenly generation. See Micah 5:7. See Trapp on " Mic 5:7 "