Wilt not thou, O God, which hadst east us off? - See the notes at Psalm 60:1. The meaning is, that although God had seemed to reject and forsake them, they had no other resource, and the appeal might be still made to him. The psalmist hoped that he would again be favorable to his people, and would not forsake them altogether. It is still true that although God may seem to forsake us, that although he may leave us for a time to discouragement and darkness, yet we have no other resource but himself; it is still true that we may hope in his mercy, and plead for his return.
And thou, O God, which didst not go out with our armies? - Who didst suffer us to be defeated. See the notes at Psalm 60:2-3.

Wilt not thou, O God - It is God alone from whom we can expect our enlargement. He who has cast us off, and has abandoned us in battle; it is that very God alone from whom we expect complete enlargement, the repossession of our own land, and the subduction of the surrounding nations; and we expect this, because he has graciously promised these mercies.

Wilt not thou, O God?.... This is an answer to the question, and is made by putting another, which tacitly contains in it an affirmation that God would do it. He has foretold the destruction of the Romish antichrist; he has said it shall be: he is faithful to his purposes, predictions, and promises; he is able to effect it; strong is the Lord that judgeth Babylon, Revelation 18:10; He will put it into the hearts of the kings of the earth to hate her; he will encourage them to reward her double; he will give her blood to drink, because she is worthy; her destruction will be according to his righteous judgment, and will be irretrievable; he will call upon all his people to rejoice at it, whose shoutings on this occasion will be like those of persons that enter into a conquered city in triumph;
which hadst cast us off; who seemed in former times to have cast off his people, when they were killed all the day long; accounted as sheep for the slaughter; were slain in great numbers in the Low Countries; burnt here in England; massacred in France and Ireland: especially God seemed to have cast off his people, and to have had no regard to his interest, when antichrist so prevailed, that all the world wondered after the beast;
and thou, O God, which didst not go forth with our armies: but suffered the antichristian beast to make war with the saints, and to overcome and kill them; and which was the case in many pitched battles with the Waldenses and Albigenses before the Reformation, and with the Protestants in Germany since. But this will not be always the case; he whose name is the Word of God, the King of kings, and Lord of lords, will fight with the antichristian powers, and overcome them, and make his people more than conquerors over them; and his having formerly seemed to have cast them off, and not going forth with their armies, will serve as a foil to set off the glorious and complete victory that will at last be obtained.

Wilt not thou?--or, "Is it not Thou?"

Hadst cut off - But now hast graciously returned to us.