A discourse on the divine ordinance of singing Psalms : Intended to prove, I. That the singing of Psalms is a part of that social or publick worship which God hath appointed in his word. II. That there are parts of the sacred Scriptures adapted to the purpose of singing, which ought to be used in the publick worship of the church, till the end of time. III. That the Scripture songs are the only forms of psalmody, which ought to be used in the solemn and publick worship of the church. IV. That, in the publick praises of the church, the musick, or outward part, ought to be conducted with decency and simplicity; and in subserviency to the spiritual part, which is chiefly to be regarded. : To which is added, an appendix, in two numbers. No. I. contains a brief history of psalmody. No. II. contains a review of Dr. Watts's Imitation of the Psalms of David, as corrected and enlarged by Joel Barlow. /