Psalms 149:3

“Let them praise his name in the dance, etc.] In a chorus of saints, joining together in their expressions of joy, by words and gestures; an ancient practice that went along with singing praises, (<021520>Exodus 15:20); or rather, “with the pipe”f1973, as some render it; a musical instrument used in former times in the worship of God, in this part of it, praising his name, with those that follow; let them sing praises unto him with the timbrel and harp; the former of these was a vessel of brass, a drum or tabret, on which they beat, perhaps like one of our kettle drums; the other was a stringed instrument of music much used, and in playing on which David was very skilful: the music of these…”

“in the dance-- (Psa 30:11). The dance is connected with other terms, expressive of the great joy of the occasion. The word may be rendered "lute," to which the other instruments are joined. sing praises--or, sing and play.”

“Let them praise his name in the dance - Margin, with the pipe. The Hebrew word here - מחול mâchôl - is rendered dancing in Psalms 30:11; dance, as here, Psalms 150:4 (where also the margin has pipe); Jeremiah 31:13; Lamentations 5:15; dances, Jeremiah 31:4. It does not elsewhere occur. On the verb חול chûl, see Psalms 10:5, note; Psalms 51:5, note. Here it cannot be improper to regard it as referring to that measured tread, or solemn movement which sometimes constituted a part of worship: 2 Samuel 6:14. Such a movement cannot be proved to be wrong in worship; whether it is wise or expedient is a different matter. Customs in worship change as the customs of a people change; and that might…”

“in the dance: or, with the pipe, Psa 150:4 \*marg. Exo 15:20; Jdg 11:34; Sa2 6:16; Jer 31:13 with the timbrel: Psa 33:2, Psa 81:2, Psa 137:2-4, Psa 150:3-5; Ch1 15:28, Ch1 15:29, Ch1 16:42, Ch1 25:6; Ch2 29:25; Ezr 3:10 Psalms 149:4”