Though there is no title prefixed to this beautiful psalm, and no direct intimation as to the occasion on which it was composed, yet there can be no doubt as to the circumstances in which it was written. There is, indeed, no mention of the name of the author, and no possibility of recovering that name now, but there can be no doubt that it was composed by one of the exiles in Babylon - one who had witnessed and shared the sufferings of the exiles there, and who had also a lively recollection of the wrongs done to Jerusalem when it was attacked and destroyed by its foes. The writer was a Jew to the heart’s core; an “Hebrew of the Hebrews;” embodying and expressing in this short psalm all that there was which was special in Hebrew feeling, patriotism, devotion. Nowhere else in a short compass is so much Judaism - so much Jewish piety - to be found concentrated as in this psalm. There is grief at their lonely and desolate condition in Babylon; profound and submissive silence in the midst of their troubles; indignation that they should be taunted and derided by their captors; a strong - earnest - supreme love for their native land; deep resentment at the remembrance of the many wrongs done to Jerusalem when it was destroyed; and an earliest invocation to God that he would remember those wrongs alike in relation to Edom and Babylon, and treat those wrong-doers as they deserved. It would seem most probable that the psalm was composed soon after the return from Babylon, and before the temple was finished - while the ruins of the city caused by the Edomites and Babylonians were visible everywhere. The combined remembrance of the insults in Babylon, and of the wrong done to the city at its capture, animates the poet, and fills his mind with this deep and burning indignation.