Thy gates shall be open continually. — The words imply (1) a state of peace in which there would be no danger of attack; and (2) the constant stream of caravans of pilgrims, With their offerings, entering by night as well as day. It is interesting to note St. John’s transfer of the thought to the heavenly Jerusalem (Revelation 21:25-26).
The forces of the Gentiles. — Better, the riches, or the possessions.
That their kings may be brought... — The verb, as in Isaiah 20:4; 1 Samuel 30:2, implies that they are brought as captives, acknowledging, with or against their will, the sovereignty of Zion.