Adam Clarke's Bible Commentary Verse 1. If it had not been the Lord ] If God had not, in a very especial manner, supported and defended us, we had all been swallowed up alive, and destroyed by a sudden destruction, so that not one would have been left. This might refer to the plot against the whole nation of the Jews by Haman, in the days of Mordecai and Esther; when by his treacherous schemes the Jews, wheresoever dispersed in the provinces of Babylon, were all to have been put to death in one day. This may here be represented under the figure of an earthquake, when a chasm is formed, and a whole city and its inhabitants are in a moment swallowed up alive.
Matthew Henry Commentary
Verses 1-5 - God suffers the enemies of his people sometimes to prevail very fa against them, that his power may be seen the more in their deliverance Happy the people whose God is Jehovah, a God all-sufficient. Beside applying this to any particular deliverance wrought in our days and the ancient times, we should have in our thoughts the great work of redemption by Jesus Christ, by which believers were rescued from Satan.
Original Hebrew שׁיר7892 המעלות4609 לדוד1732 לולי3884 יהוה3068 שׁהיה1961 לנו יאמר559 נא4994 ישׂראל׃3478