Between these lie such depressions as Cwm Glas (blue or green vale) to the N., and Cwm y Ilan (clearing, town or church vale) to the S.
In 1402 he routed the forces of the Mortimers at Bryn Glas near Knighton in Maesyfed, where he captured Sir Edmund Mortimer, the uncle and guardian of the legitimate heir to the English throne, the young earl of March.
Ultimately in 1730 Glas returned to Dundee, where the remainder of his life was spent.
From the scriptural doctrine of the essentially spiritual nature of the kingdom of Christ, Glas in his public teaching drew the conclusions: (1) that there is no warrant in the New Testament for a national church; (2) that the magistrate as such has no function in the church; (3) that national covenants are without scriptural grounds; (4) that the true Reformation cannot be carried out by political and secular weapons but by the word and spirit of Christ only.
Hovestadt, Jenaer Glas (Jena, 1900; Eng.
JOHN GLAS (1695-1773), Scottish divine, was born at Auchtermuchty, Fife, where his father was parish minister, on the 5th of October 1695.