“What, then, should we sing to the praise of God? Our own edification and safety lie in singing only the Book of Psalms; not any “imitation,” but “the word of Christ” itself, in the most literal and correct version which can be obtained.”

From Alexander Blaikie’s Catechism of Praise:

“XXI. What, then, is the duty of Christian churches in this matter? In whatever manner governed, they ought, as Protestants, carefully to avoid all unauthorized worship, either in the matter or manner or praise; to abide by that which is commanded, recollecting that all the embellishments and meretricious ornaments, with which human skill invests the matter and manner or our praise, are similar to the armour or Saul when placed on David. 1 Sam. 17:39. They form no appointed part of the “armour of God” in the Christian “warfare,” Eph. 6:11, and they must be cast aside, or we will incur the displeasure of “a jealous God;” spread, under his disapprobation, spiritual death over the churches of Christ; cause his children to weep in secret places; the men of this world to rejoice, and the enemies of Christ to blaspheme.

XXII. What, then, should we sing to the praise of God? Our own edification and safety lie in singing only the Book of Psalms; not any “imitation,” but “the word of Christ” itself, in the most literal and correct version which can be obtained. Notwithstanding numerous minor defects, the Scotch or Presbyterian “version is, upon the whole, the best.” When using it, “we have the satisfaction to know, that we utter praise in the very words of inspiration;” and in the opinion of Boswell, “it is vain to think of having a better.” Of the version of Sternhold and Hopkins, the Rev. Wm. Romaine says, “It is generally the sentiment of the Holy Spirit. That is very rarely lost, and this should silence every objection—it is the word of God. Moreover, the version comes nearer to the original than any I have ever seen except the Scotch.” Some judicious verbal amendments, by the omission of antiquated words, would be truly desirable if Presbyterians could unanimously make them.

XXIII. In what manner, then, should we sing these sacred songs to the praise of Jehovah? Always as an act of divine worship, with the spirit and with the understanding, with our voice, and with grace in our hearts, making melody to the Lord—individually—in families—and in the house of God. Avoiding the decorations of a theatrical and sentimental taste, and delighting ourselves in the word of Christ after the inward man, we will grow in grace and in the knowledge of our Lord and Saviour Jesus Christ; we will come to an innumerable company of angels, to the spirits of just men made perfect, and daily join with them in singing the song of Moses and of the Lamb.”

“What poetry is to be compared with the Psalms of God? … Singing of psalms is commanded by divine authority, and commanded as a part of divine worship; not left to man’s wisdom how to provide for it, but is expressly provided for in the good word of God … The Psalms are stolen out of the church, and thereby the members are deprived of the blessings promised to the singing of them; for God will not give you the end if you neglect the means.”

Alexander Blaikie quotes William Romaine:

“What poetry is to be compared with the Psalms of God? Who can make the singing of any human verses an ordinance, or give a blessing to them, such as is  promised, and is given to the singing of Psalms? For what reason, then, are they set aside in the church? Why are the words of man’s genius preferred to the words of inspiration? Singing of psalms is commanded by divine authority, and commanded as a part of divine worship; not left to man’s wisdom how to provide for it, but is expressly provided for in the good word of God. And is not great contempt put upon this infinitely wise provision, when it is quite disused in the church, and man’s word is preferred to it?

What would you think of them who should throw aside all the Scripture, and never read it all in the congregation? And is it not an offense of the like nature, totally to neglect a part, a chief part of it, which was recorded for the use of the church, and in which its members were to sing the high praises of their God? It is hereby treated as useless and good for nothing. A very gross affront is put upon the love and wisdom which revealed this divine collection of hymns, and the church is deprived of the blessing promised to the singing of them, whereby it is robbed of one of its choicest treasures. If any thing be sacrilege, this is. The Psalms are stolen out of the church, and thereby the members are deprived of the blessings promised to the singing of them; for God will not give you the end if you neglect the means. Frequent are his commands in the Old Testament to sing psalms, and we have several in the New. for instance, let the word (not something beside it, but the word) of Christ itself dwell in you richly in all wisdom, teaching and admonishing one another in psalms, and hymns, and spiritual songs. These are not different things, but different names for the same collection of Psalms, as they treat of different subjects.”

Alexander Blaikie, Catechism of Praise, 1849