“With legal spade the gospel field he delves, Who thus drives sinners in unto themselves; Halving the truth that should be all reveal'd, The sweetest part of Christ is oft conceal'd, We bid men turn from sin, but seldom say, Behold the Lamb that takes all sin away! Christ, by the gospel rightly understood, Not only treats a peace, but makes it good. Those suitors therefore of the bride, who hope, By force to drag her with the legal rope, Nor use the drawing cord of conqu'ring grace, Pursue with flaming zeal a fruitless chase; In vain lame doings urge, with solemn awe, To bribe the fury of the fiery law: With equal success to the fool that aims By paper walls to bound devouring flames.”
Ralph Erskine was the brother of another prominent churchman, Ebenezer Erskine. After studying at the University of Edinburgh, Ralph was ordained assistant minister at Dunfermline in 1711. He ratified the protests which his brother laid on the table of the assembly after being rebuked for his synod sermon, but he did not formally withdraw from the establishment till 1737.
He was also present at, though not a member of, the first meeting of the "associate presbytery". When the severance took place over the oath administered to burgesses, he adhered, along with his brother, to the burgher section.
His works consist of sermons, poetical paraphrases and gospel sonnets. The Gospel Sonnets have frequently appeared separately. His Life and Diary, edited by the Rev. D Fraser, was published in 1842.