be such a crying abomination to break covenant between man and man; and if such persons are accounted as the off-scouring of men, not worthy to live in a Christian, no, not in a heathen commonwealth: if it be a sin that draws down vengeance from heaven; much more for a man to enter into covenant with the great Jehovah, and to break such a religious engagement: this must needs be a destroying and soul-damning sin. And of such religious covenants I am now to speak. There are two covenants that God made with man, a covenant of nature, and a covenant of grace. The covenant of nature, or of works, was made with Adam, and all mankind in him. This covenant Adam broke, and God presently had a quarrel against him for breaking of it. And, to avenge the quarrel of the covenant, he was thrust out of paradise, and there was a sword also placed at the east end of the garden of Eden, to avenge covenant-breaking. And by nature we are all children of wrath, heirs of hell, because of the breach of that covenant. And therefore we should never think of original sin, or of the sinfulness and cursedness of our natural condition, but we should remember what a grievous sin covenant-breaking is. But, after man was fallen, God was pleased to strike a new covenant, which is usually called a covenant of grace, or of reconciliation. This was first propounded to Adam by way of promise, "The seed of the woman shall bruise the serpent's head." And then to Abraham by way of covenant, "In thy seed shall all the nations of the world be blessed." And then to Moses by way of testament. It is nothing else but the free and gracious tender of Jesus Christ, and all His rich purchases to all the lost and undone sons of Adam, that shall believe in Him: or as the phrase is, "That shall take hold of the covenant." Now you must know that baptism is a seal of this covenant, and that all that are baptised do, sacramentally at least, engage themselves to walk before God, and to be upright; and God likewise engages Himself to be their God. This covenant is likewise renewed when we come to the Lord's Supper, wherein we bind ourselves, by a sacramental oath, unto thankfulness to God for Christ. Add further, that besides this general covenant of grace, whereof the sacraments are seals, there are particular and personal, and family and national covenants. Thus, Job had his covenant; and David. And when he came to be king, he joined in covenant with his people to serve the Lord. Thus Asa, Jehoiada, Josiah, and others. Thus the people of Israel had not only a covenant in circumcision, but renewed a covenant at Horeb and Moab, and did often again and again bind themselves to God by vow and covenant. And thus the churches of Christ. Christians, besides the vows in baptism, have many personal and national engagements unto God by covenant, which are nothing else but the renovations and particular applications of that first vow in baptism. Of this nature is that you are to renew this day.