Psalms 145:1 «David's [Psalm] of praise. » I will extol thee, my God, O king; and I will bless thy name for ever and ever.
David's Psalm of praise] Heb. David's praise or hymn, well worthy, saith learned Beza, to be made use of by all men for a rule and pattern of praising God. Perfectum illius rationalis cultus exemplum (Beza). It is one of those psalms that are artificially made up after the order of the alphabet, and so highly prized by the Rabbis, that they doubt not to promise heaven to him who shall thrice every day pray over this psalm, corde, ore, et opere (Kimchi. R. Arama).
Ver. 1. I will extol thee, my God, O king] i.e. O Christ, the King of kings, whose vassal I profess myself, as did afterwards also those three most Christian emperors, Constantine, Valentinian, and Theodosius.