Over a dozen reasons why the argument for Exclusive Psalmody doesn't stand up, Part 12

12. The Westminster Divines did not believe in Exclusive Psalmody. 

From around the time of the compiling of the Westminster Confession of Faith [1643-46] there is abundant evidence to be gleaned that the term 'psalm' in the chapter 21 section 5 is not referring exclusively to the Psalter. This section of the Confession reads:
The reading of the Scriptures with godly fear; the sound preaching and conscionable hearing of the Word, in obedience unto God, with understanding, faith, and reverence; singing of psalms with grace in the heart; as also, the due administration and worthy receiving of the sacraments instituted by Christ; are all parts of the ordinary religious worship of God: beside religious oaths, vows, solemn fastings, and thanksgivings, upon special occasions, which are, in their several times and seasons, to be used in a holy and religious manner.

The men who compiled these worthy documents of the Westminster Standards could not be shoehorned into the exclusive psalmist camp.

Over a dozen reasons why the argument for Exclusive Psalmody doesn't stand up, Part 11

11. The Puritans did not all believe in Exclusive Psalmody

The impression is often given by those who promote exclusive psalmody that every Reformed stalwart of the past was an exclusive psalmist. This could not be further from the truth. Many of the great and good men of the past who were reformed in doctrine did not hold to the exclusive singing of the Psalter. 

Some prominent examples:

1. Matthew Henry. In his commentary on Ephesians 5:19 the renowned and much loved expositor had this to:
By psalms may be meant David's psalms, or such composures as were fitly sung with musical instruments. By hymns may be meant such others as were confined to matter of praise, as those of Zacharias, Simeon, &c.

On Colossians 3:16 his commentary reads: 

Singing of psalms is a gospel ordinance - the Psalms of David, and spiritual hymns and odes, collected out of the scripture, and suited to special occasions, instead of their lewd and profane songs in their idolatrous worship.