Augustus Montague Toplady

This English clergyman and writer, (1740-1778), is best known for his beloved and very familiar hymn, which was just one of many he wrote, but in his short lifetime he was known for his works of verse Poems on Sacred Subjects and best known for his polemical and dogmatic works. Toplady had been strongly influenced by the teachings of John Wesley but moved away from the Arminianism of the Methodists to the doctrines of Sovereign Grace of the Calvinist church and was licensed to preach in the Anglican Church, serving in the Anglican Church for the remainder of his life.
Two of his most influential and popular published works were The Church of England Vindicated from the Charge of Arminianism (1769); and The Historic Proof of the Doctrinal Calvinism of the Church of England (1774).
There was a constant and bitter controversy between the followers of Wesley who stressed man's free will and those who followed John Calvin's doctrine of election. In an article written for the The Gospel Magazine in 1776 Toplady wrote "he supported the doctrine of election by arguing that just as England could never pay her national debt, so man through his own efforts could never satify the eternal justice of a Holy God." (from Amazing Grace by Osbeck). Included with the article was a hymn which was the climax of his article which God has preserved over these 200 years to bless and encourage countless souls, including some precious Methodists I have known.
As you read through these words, you will find the Sovereign Grace that is the rock....
the Rock of Ages:

Rock of ages, cleft for me, left me hide myself in Thee;
let the water and the blood, from Thy wounded side which flowed,
be of sin the double cure, save from wrath and make me pure.

Could my tears forever flow, could my zeal no languor know,
these for sin could not atone -- Thou must save and Thou alone:
in my hand no price I bring; simply to Thy cross I cling.

While I draw this fleeting breath, when my eyes shall close in death,
when I rise to worlds unknown and behold Thee on Thy throne,
Rock of Ages, cleft for me, let me hide myself in Thee.
Augustus Toplady

"For I do not want you to be ignorant of the fact, brothers, that our forefathers were all under the cloud and that they all passed through the sea....they all ate the same spiritual food and drank the same spiritual drink; for they drank from the spiritual rock that accompanied them and that rock was Christ." (1 Cor. 10:1,3,4)