Thou shalt arise - Thou wilt come forth - as if God had been inattentive or inactive.

And have mercy upon Zion - That is, Upon Jerusalem - represented as in a state of desolation. God would at length pity her, and interpose in her behalf.

For the time to favor her - Implying that there was an appointed time to favor her, or to bring her troubles to an end.

Yea, the set time is come - The word used here - מועד mô‛êd - means properly an appointed season - a designated moment. It refers to some purpose or appointment in regard to anything that is to be done, as in 1 Samuel 13:8, 1 Samuel 13:11; 2 Samuel 20:5; Genesis 17:21; or to a fixed period, as when certain things are to be done, certain festivals to be held regularly at a certain season of the year, Lamentations 1:4; Lamentations 2:6; Hosea 9:5; Hosea 12:9; Leviticus 23:2, Leviticus 23:4,Leviticus 23:37, Leviticus 23:44. Here it means that there was some period fixed in the Divine Mind when this was to occur, or a definite time when it had been predicted or promised that it would occur. The language is such as would be applicable to the captivity in Babylon, concerning which there was a promise that it should continue but seventy years. If the psalm refers to that, then the meaning is that there were indications in the course of events that that period was about to arrive. Compare the notes at Daniel 9:2. What those indications were in this case, the psalmist immediately states, Psalm 102:14. It may be remarked here, that there are usually some previous intimations or indications of what God is about to do. "Coming events cast their shadows before." Even the divine purposes are accomplished usually in connection with human agency, and in the regular course of events; and it is frequently possible to anticipate that God is about to appear for the fulfillment of his promises. So it was in the coming of the Saviour. So it was in the destruction of Jerusalem by the Romans. So it is when God is about to revive religion in a church. So it is, and will be, in regard to the conversion of the world.

Thou shalt arise, and have mercy upon Zion - While he is humbled at the footstool of mercy, and earnestly praying for mercy, an answer of peace is given; he is assured, not only that they shall be delivered, but that the time of deliverance is at hand. The set time - the seventy years predicted by Jeremiah, was ended; and God gave him to see that he was ever mindful of his promises.

Thou shalt arise, and have mercy on Zion,.... Exert his power, and display the riches of his grace and mercy; not by delivering the Jews from the Babylonish captivity, to which some restrain it; but by redeeming his church and people by power and price; or rather by raising up and restoring them to great glory and prosperity in the latter day:

for the time to favour her, yea, the set time, is come; not the seventy years of the captivity made known to the prophet Jeremiah; rather the seventy weeks of Daniel fixed for the Messiah's coming; or the fulness of time agreed upon, between Christ and his Father, for him to come and redeem his people; but it may best of all design the end of the forty two months, or the 1260 days, or years, fixed for the treading under foot the holy city, for the witnesses prophesying in sackcloth, and for the reign of antichrist; which when come will usher in glorious times in favour of Zion, the church of God, Revelation 11:2.

Thou shalt arise, and have mercy upon Zion: for the time to favour her, yea, the {k} set time, is come.

(k) That is, the seventy years which by the prophet Jeremiah you appointed, Jer 29:12.

102:13 The set time - The end of those seventy years which thou hast fixed.

13, 14. Hence it is here adduced.

for-or, "when."

the set time, &c.-the time promised, the indication of which is the interest felt for Zion by the people of God.

102:12-22 We are dying creatures, but God is an everlasting God, the protector of his church; we may be confident that it will not be neglected. When we consider our own vileness, our darkness and deadness, and the manifold defects in our prayers, we have cause to fear that they will not be received in heaven; but we are here assured of the contrary, for we have an Advocate with the Father, and are under grace, not under the law. Redemption is the subject of praise in the Christian church; and that great work is described by the temporal deliverance and restoration of Israel. Look down upon us, Lord Jesus; and bring us into the glorious liberty of thy children, that we may bless and praise thy name.