Behold, they shall surely assemble, but not by {n} me: whoever shall assemble {o} against thee shall fall for thy sake.

(n) And therefore will not prevail.

(o) Meaning, the domestic enemies of the Church, as are the hypocrites.

Wesley's Notes

54:15 Behold - It is true some will combine and make an attempt against thee. But - Without any such commission from me, as Sennacherib and Nebuchadnezzar had.

Jamieson-Fausset-Brown Bible Commentary

15. gather together, &c.-that is, If it should happen that enemies "gather together" against thee (Ps 2:2), they will not have been sent by Me (compare Ho 8:4) as instruments of My wrath (nay, it will be with My disapproval); for "whosoever shall gather together," &c. (Ps 59:3).

fall for thy sake-rather, "shall come over to thy side" [Lowth]. Literally, "fall to thee" (Jer 21:9; 39:9). To be fully fulfilled to Jerusalem hereafter (Zec 14:16).

Matthew Henry's Concise Commentary

54:11-17 Let the people of God, when afflicted and tossed, think they hear God speaking comfortably to them by these words, taking notice of their griefs and fears. The church is all glorious when full of the knowledge of God; for none teaches like him. It is a promise of the teaching and gifts of the Holy Spirit. All that are taught of God are taught to love one another. This seems to relate especially to the glorious times to succeed the tribulations of the church. Holiness, more than any thing, is the beauty of the church. God promises protection. There shall be no fears within; there shall be no fightings without. Military men value themselves on their splendid titles, but God calls them, Wasters made to destroy, for they make wasting and destruction their business. He created them, therefore he will serve his own designs by them. The day is coming when God will reckon with wicked men for their hard speeches, Jude 1:15. Security and final victory are the heritage of each faithful servant of the Lord. The righteousness by which they are justified, and the grace by which they are sanctified, are the gift of God, and the effect of his special love. Let us beseech him to sanctify our souls, and to employ us in his service.