Adam Clarke on Psalms 124:7

Our soul is escaped as a bird out of the snare - This is a fine image; and at once shows the weakness of the Jews, and the cunning of their adversaries. Haman had laid the snare completely for them; humanly speaking there was no prospect of their escape: but the Lord was on their side; and the providence that induced Ahasuerus to call for the book of the records of the kingdom to be read to him, as well indeed as the once very improbable advancement of Esther to the throne of Persia, was the means used by the Lord for the preservation of the whole Jewish people from extermination. God thus broke the snare, and the bird escaped; while the poacher was caught in his own trap, and executed. See the Book of Esther, which is probably the best comment on this Psalm.