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Dudley Tyng (January 12, 1825-April 19, 1858 was an Episcopalianpastor Episcopalian pastor who took a strong stand against slavery and founded the Church of the Covenant in Philadelphia after that stand cost him his pastorate. He was a leader in the revival of 1858. Tyng’s last words, “Let us all stand up for Jesus” became the well-known hymn, “Stand Up, Stand Up for Jesus,” written by the pastor friend who preached his funeral, George Duffield, Jr.