In the investigation upon which we are now entering, I shall in the outset, direct your attention to "the covenant of works," the breach of which made all the others necessary. It stands by itself, and will be so treated. Next I shall refer you to the three separate developements of the covenants, — of salvation in the Mediator; the first being the announcement in Eden, immediately after the fall, of a Deliverer from sin; the second, the previous covenant of redemption, upon which necessarily, that announcement was predicated; and the third, the promise to Abraham that Messiah should come of his family, which promise was renewed, and transferred successively, to Isaac, to Jacob, to Judah, and to David. I shall then consider the three manifestations of the covenant of the law; the first of which, made with Abraham, constituted his descendants a separate nation, and gave them as the place of their residence until the coming of Messiah, the land of Canaan; the second of which, also made with Abraham, enacted circumcision, and thus distinguished his posterity personally, from all other men; and the third, made with all Israel at Sinai, gave them their peculiar national government. It will be necessary here, for us to pause, and investigate the philology of these covenants; which when we have examined, we shall consider how they appear in relation to the christian dispensation. It will then at once be apparent that the former three covenants were direct in their reference to Christ, and were substantially one covenant, made known in the gospel, as "the new and everlasting covenant;" and that the latter three were indirect in their reference to Christ. Together formed the old covenant, and when Messiah came, and his claims were fully established, were consummated and superceded by the gospel, which is their perfect developement.