"For God will be your King to-day" (Vol. vii., p. 67.).—In reply to your querist H. A. S. with respect to the above line, I believe that it belongs not to Somersetshire, but to Ireland; not to Monmouth's rebellion, but to the civil wars of 1690.
It is the closing couplet of a stanza in the popular ballad on the "Battle of the Boyne."
A very perfect copy of this ballad will be found in Wilde's Beauties of the Boyne, p. 271., beginning with—
"July the first, of a morning clear,
One thousand six hundred and ninety,
King William did his men prepare—
Of thousands he had thirty,—
To fight King James and all his host,
Encamp'd near the Boyne water," &c.
The passage from which the lines in question are taken is as follows: