Sing unto the LORD, bless his name; shew forth his salvation from day to day.
Ver. 2. Sing unto the Lord, &c.] David was at this time full of affection and exultation of spirit (insomuch as Michal mocked him for it, 1Ch 15:29), and thence this heap of holy expressions to the same purpose. Out of the abundance of the heart the mouth speaketh.
Show forth his salvation] Evangelize, preach the gospel of salvation by Christ. See Psalms 40:10 2 Samuel 18:18 Isaiah 61:1, where the same word is used.
From day to day] Other news delight us only at first hearing; but the good news of our redemption is sweet from day to day, ac si in eodem die redemptio fuisset operata, saith Kimchi here, as if it were done but today. Tam recens mihi nunc Christus est, saith Luther, ac si hac hora fudisset sanguinem, Christ is now as fresh unto me as if he had shed his blood but this very hour.