Source, in full
Reported as a remark made by Hill when he arranged an Easter hymn to the tune of "Pretty, Pretty Polly Hopkins, in The Rambler, Vol. 9 (1858), p. 191; it was earlier attributed to George Whitefield, in The Monthly Review, or, Literary Journal, Vol. 49 (June 1773 - January 1774), p. 430, and has also attributed to Charles Wesley, and sometimes his brother John, as well as William Booth, who popularized it as an adage in promoting The Salvation Army.