This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Friday first's the day appointed
By the Right Worshipful anointed,
To hold our grand procession;
To get a blad o' Johnie's morals,
And taste a swatch o' Manson's barrels
I' the way of our profession.
The Master and the Brotherhood
Would a' be glad to see you;
For me I would be mair than proud
To share the mercies wi' you.
If Death, then, wi' skaith, then,
Some mortal heart is hechtin',
Inform him, and storm him,
That Saturday you'll fecht him.
Robert Burns.
Mossgiel, An. M. 5790.