The first triplet is a general invocation to praise, coloured by the phraseology of Deuteronomy. Vv. 2_a_ and 3_a_ quote Deut. x. 17. The second and third triplets (vv. 4-9) celebrate Jehovah's creative power. "Doeth great wonders" (ver. 4) is from Psalm lxxii. 18. The thought of the Divine Wisdom as the creative agent occurs in Psalm civ. 24, and attains noble expression in Prov. iii. In ver. 6 the word rendered _spread_ is from the same root as that rendered "firmament" in Genesis. The office of the heavenly bodies to rule day and night is taken from Gen. i. But the psalm looks at the story of Creation from an original point of view, when it rolls out in chorus, after each stage of that work, that its motive lay in the eternal loving-kindness of Jehovah. Creation is an act of Divine love. That is the deepest truth concerning all things visible. They are the witnesses, as they are the result, of loving-kindness which endures for ever. Vv. 10-22 pass from world-wide manifestations of that creative loving-kindness to those specially affecting Israel. If vv. 19-22 are left out of notice, there are three triplets in which the Exodus, desert life, and conquest of Canaan are the themes,--the first (vv. 10-12) recounting the departure; the second (vv. 13-15) the passage of the Red Sea; the third (vv. 16-18) the guidance during the forty years and the victories over enemies. The whole is largely taken from the preceding psalm, and has also numerous allusions to other parts of Scripture. Ver. 12_a_ is found in Deut. iv. 34, etc. The word for dividing the Red Sea is peculiar. It means to hew in pieces or in two, and is used for cutting in halves the child in Solomon's judgment (1 Kings iii. 25); while the word "parts" is a noun from the same root, and is found in Gen. xv. 17, to describe the two portions into which Abraham clave the carcasses. Thus, as with a sword, Jehovah hewed the sea in two, and His people passed between the parts, as between the halves of the covenant sacrifice. In ver. 15 the word describing Pharaoh's destruction is taken from Exod. xiv. 27, and vividly describes it as a "shaking out," as one would vermin or filth from a robe. In the last triplet (vv. 23-25) the singer comes to the Israel of the present. It, too, had experienced Jehovah's remembrance in its time of need, and felt the merciful grasp of His hand plucking it, with loving violence, from the claws of the lion. The word for "low estate" and that for "tore us from the grasp" are only found besides in late writings--the former in Eccles. x. 6, and the latter in Lam. v. 8.