Now, as the stability and everlastingness of God's covenant with His elect, lies in the strength of the foundation, "His own love, and the blood of His Son:" so the stability and firmness of our covenant with God, lies in the strength of this foundation, the securing of the gospel, and the asserting of gospel-purity in worship, and privileges in government; the securing of our lives, and the asserting of our common liberties. When at any time ye can question, and, from the oracles of truth, be resolved, that these are sufficient grounds of making a covenant, or that these are not ours, ye may go, and unassure the covenant which ye make this day. _Application._ Let me therefore invite you in the words of the prophet Jeremiah, "Come let us join ourselves to the Lord, in a perpetual covenant that shall never be forgotten." And do not these look like the days wherein the prophet calls to the doing of this? "In those days, and at that time, saith the Lord." What time, and what days were those? the beginning of the chapter answers. "The word that the Lord spake against Babylon, declare ye among the nations, and publish, and set up a standard, publish and conceal not: say, Babylon is taken, Bell is confounded, Merodach is broken in pieces; her idols are confounded, her images are broken in pieces: for out of the north there cometh up a nation against her, which shall make her land desolate." Then follows, "In those days and at that time saith the Lord, the children of Israel shall come. And they shall ask the way to Zion, with their faces thitherward saying, Come, and let us join ourselves to the Lord, in a perpetual covenant that shall not be forgotten."