A Fish caught in his own net : An examination of nine sermons, from Matt. 16. 18. published last year, by Mr Joseph Fish of Stonington; wherein he labours to prove, that those called standing churches in New-England, are built upon the rock, and upon the same principles with the first fathers of this country: and that Separates and Baptists are joining with the gates of hell against them. : In answer to which; many of his mistakes are corrected; the constitution of those churches opened; the testimonies of prophets and apostles, and also of many of those fathers are produced, which as plainly condemn his plan, as any Separate or Baptist can do. / By Isaac Backus. Pastor of a church of Christ in Middleborough. ; [Six lines of quotations].