Christian ministers commissioned by the great head of the church to preach the Gospel [microform] : represented in a sermon preached November 21, 1792. At the ordination of Mr. Nathan Underwood, to the pastoral care of the Second Church and Congregational Society in Harwich. / By Jacob Cushing, A.M. Pastor of the church in Waltham. ; To which are added the charge, by the Rev. Jonas Clark, of Lexington. And right hand of fellowship, by the Rev. John Simpkins, of Harwich.