David's [Psalm] of praise. This psalm is rendered by Ainsworth "a hymn of David"; and the whole book of Psalms is from hence called "the Book of Hymns"; see Eph 5:19; It seems to have been a psalm David took great delight in, and it may be that he often repeated and sung it, as it was made by him with great care and contrivance, in a very curious manner, as well as he was assisted in it by divine inspiration; for it is wrote in an alphabetical order, each verse: beginning with the letter of the alphabet in course, and goes through the whole, excepting one letter; and very probably it was composed in this form that it might be the more easily committed to memory, and retained in it.
The Jews have a very high opinion of it; their Rabbins say, that whoever says this psalm thrice every day may be sure of being a child of the world to come. This is mentioned by Arama and Kimchi; and which the latter explains thus, not he that says it any way, but with his mouth, and with his heart, and with his tongue.
It seems to have been written by David after the Lord had granted him all his requests put up in the preceding psalms, and had given him rest from all his enemies; and when he turned his prayers into praises; for this psalm is wholly praise from one end to the other; and so are all the five following ones; they begin and end with "hallelujah": nor is there a single petition in them, as I remember; so that it may in some sense be said, "here the prayers of David the son of Jesse are ended".
It no doubt, as Cocceius observes, belongs to the Messiah and his kingdom, which is everlasting, Ps 145:13.Ver. 1. I will extol thee, my God, O King,.... Or "the King" , the King Messiah, who is by way of eminency called "the King", as in Ps 21:1.
This is the foundation of this whole psalm, as Aben Ezra observes; and shows who is intended and who is the subject of it that is spoken of throughout, even the Messiah, who is the King of the world, the King of the kings of it, the King of Zion, of his church and people, the King of saints, of all believers in him, by the appointment of God, by the conquest of his grace, over whom he reigns by his Spirit and grace; for this his kingdom is spiritual, is in righteousness, and everlasting: and this great King is not a creature, but God, the mighty God, David's Lord and God, and the Lord and God of every saint; whom David loved as such, believed in, looked unto for salvation; from whom he received grace and expected glory, and knew and claimed his interest in him, which is the great privilege of believers in him; see Joh 20:28; and therefore they, as David, will extol him above all created beings, he being God over all; extol him above all men, even the best and greatest, Moses, Joshua, Aaron, Abraham, or any other, who are his creatures, his children, and his subjects; and even as man he is to be extolled above all men; being chosen out from among the people, fairer than the children of men, and the chiefest among ten thousand; and above the angels, having a more excellent name and nature than they; they being his creatures and servants, and he their Creator and the object of their worship: Christ is extolled by his people when they ascribe deity to him, magnify him in his offices, and make use of him in them all; attribute their whole salvation to him, think and speak highly of him, and declare him extolled and exalted at the right hand of God, as he now is, and as the Old Testament saints, as David and others, had a foresight of and rejoiced in, Ps 110:1; the Septuagint, Syriac, Ethiopic, and Arabic versions, have it, "my King"; see Zec 9:9;and I will bless thy name for ever and ever; by pronouncing him the Son of the Blessed, God over all blessed for ever; and by ascribing blessing, honour, glory, and power, unto him; by adoring and celebrating the perfections of his nature, which are his name, by which he is known; by expressing a high value and esteem for every precious name of his, as Immanuel, God with us; Jesus, a Saviour, &c.
and a regard to his everlasting Gospel, which is his name, bore by his ministering servants throughout the world; see Ps 8:1.