A careful and strict examination of the external covenant, and of the principles by which it is supported : A reply to the Rev. Mr. Moses Mather's piece, entituled, The visible church in covenant with God, further illustrated, &c. : A vindication of the plan on which the churches in New-England were originally formed. Interspersed with remarks upon some things, advanced by Mr. Sandeman, on some of the important points in debate. /