Let them now that fear the LORD say, that his mercy [endureth] for ever.
Ver. 4. Let them now that fear the Lord say] See Psalms 115:11, and observe that the psalmist beateth upon the το νυν (as doth also the apostle, 2Co 6:2), Now, now, now, saith he; because, for aught we know, it is now or never, today or not at all; the dead praise thee not, Psalms 6:5 .
That his mercy, &c.] This is the fourth time in four verses, as Psalms 136:1,26, in every one of those twenty-six verses; like as a bird that having gotten a note, recordeth it over and over.