Charles H. Spurgeon on Psalms 149:3

Let them sing praises unto him with the timbrel and harp. They who from hence urge the use of music in religious worship, must, by the same rule, introduce dancing, for they went together, as in David's dancing before the ark (Jud 21:21). But whereas many Scriptures in the New Testament keep up singing as a gospel ordinance, none provide for the keeping up of music and dancing; the gospel canon for Psalmody is to "sing with the spirit and with the understanding." —Matthew Henry.