Of all the seven letters, Durham said that the letter to the church in Ephesus (Revelation 2:1-7) was the one that was most relevant to the Covenanted Church in Scotland, and called on his readers to ‘look upon this epistle as if Christ were writing a letter to Scotland’.
He says that Christ’s problem with the Reformed Church in Scotland in his day wouldn’t have been because of their lack of orthodoxy or zeal or outward worship - but a lack of love for God manifested in a lack of love for one another:
‘Wonder not why God quarrels with Scotland; we need not say it is for corruption in doctrine or discipline, nor for our zealous going about it; that was not his quarrel with Ephesus…Neither is it his quarrel with us, but as it was his quarrel with Ephesus, that she was fallen from her first love, so it is with us.
…Our Lord Jesus would never have quarrelled [with] Ephesus nor us for zeal and faithfulness. But…there is a declining love, especially love to God and love to one another, which may be seen in our walking uncharitably and untenderly. A defection in the manner of performing duties; our fasts have not been from a right principle, our censures not in love to the souls of the people; much roughness and untenderness in drawing them forth.
…Therefore look upon this epistle as if Christ were writing a letter to Scotland; and in his letter saying, “for as much purity and zeal as you have, yet you are fallen from your first love; much of your love, warmness and tenderness is away”’.