¹ This Psalm is with much propriety entitled "Praise of David; " for it is throughout a continued celebration of the perfections and doings of God. It is certainly one of the most interesting and beautiful of the compositions of the sweet singer of Israel; and so high an opinion did the ancient Hebrews form of it that they were wont to say -- "Whoever utters this Psalm thrice each day with the heart and tongue is a happy man, and shall infallibly enjoy the blessings of the world to come." The time and occasion of its composition can only be conjectured. Dr. Morison thinks it probable that it was composed by David when he and the nation of Israel obtained the blessings which he implored in the preceding Psalm; and that it is that new song which he purposed to sing (Psalm 144:9) when God appeared in glory for his chosen people. This is the last of the alphabetical Psalms. The first verse commences with the first letter of the Hebrew alphabet, the second verse with the second letter, and so on to the close, with the exception that the hemistich of which n, nun, was the commencing letter is wanting. The other alphabetical Psalms are Psalm 25, Psalm 34, Psalm 37, Psalm 111, Psalm 112, Psalm 119.