Having related his prayer, he now declares the gracious answer which God gave him.
Put off my sackcloth, i.e. given me occasion to put off that sackcloth, which they used to wear in times of mourning. See Est_4:1Psa_35:13Isa_32:11Joe_1:13.
With gladness; either with garments of gladness or rejoicing; or with joy, as with a garment surrounding me on every side; as he is for the like reason said to be girded with strength, Psa_18:32.