Despite the three instances of CLUPTL in HTI being Scottish, I doubt that the paraphrasing was done in Scotland. All that we can be sure of, meantime, is that the verse dates from before 1810, the earliest possible date of Vol. 4 of James Steven`s psalmody.

As Edmund suggests, the words do not come from the Scottish Psalter. I have also checked both the 1745 and 1781 paraphrases, though these sources are hardly likely given that the verse seems to be a free revision of Psalm 95, with its mention of singing psalms.

What I have found surprising on checking the text lists given by HTI for the three psalmodies that contain CLUPTL, is that many are not from the Scottish Psalter. Which raises a further problem: were these psalmodies not primarily intended for Presbyterian kirks, or did Presbyterian kirks use other versions of the psalter?

I do not know James Steven`s origin, but Robert Gale was a tuner for Broadwood`s in London before moving to Edinburgh. He became precentor of St George`s Church, opened in Charlotte Square in 1814. Whether he was still there in 1820 I am not sure, but R.A. Smith had become precentor of this cathedral-like kirk by 1823.

My hunch is that the words came from English dissenters rather than Scottish seceders.