This text comes from The Poetical Works of Robert Burns, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
So heavy, passive to the tempests' shocks,
Strong on the Sign-post stands the stupid Ox.
———
His face with smile eternal drest,
a Just like the Landlord to his guest,
High as they hang with creaking din,
To index out the Country Inn.
———
A head, pure, sinless quite of brain and soul,
The very image of a Barber's Poll;
It shows a human face and wears a wig,
And looks, when well preserved, amazing big.