Psalms 145:1

The entitling of this David's psalm of praise may intimate not only that he was the penman of it, but that he took a particular pleasure in it and sung it often; it was his companion wherever he went. In this former part of the psalm God's glorious attributes are praised, as, in the latter part of the psalm, his kingdom and the administration of it. Observe, I. Who shall be employed in giving glory to God. 1. Whatever others do, the psalmist will himself be much in praising God. To this good work he here excites himself, engages himself, and has his heart much enlarged in it. What he does, that he will do, having more and more satisfaction in it. It was his duty; it was his delight. Observe, (1.) How he expresses the work itself: "I will extol thee, and bless thy name (Psa 145:1); I will speak well of thee, as thou hast made thyself known, and will therein express my own high thoughts of thee and endeavour to raise the like in others." When we speak honourably of God, this is graciously interpreted and accepted as an extolling of him. Again (Psa 145:2): I will bless thee, I will praise thy name; the repetition intimates the fervency of his affection to this work, the fixedness of his purpose to abound in it, and the frequency of his performances therein.

— Matthew Henry's Concise Commentary (public domain)