VI. The qualifications of absolute necessity to the validity of our covenant with God _in foro interiori_, are these: 1. That we understand what we do as to all the essentials of the covenant; for _ignorantis non est consensus_. 2. That it be our own act, performed by our natural or legal selves, that is, some one that hath power so far to dispose of us (as parents have of their children). 3. That it be deliberate, sober, and rational, done by one that is _compos mentis_, in his wits, and not in drunkenness, madness, or incogitancy.[38] 4. That it be seriously done with a real intention of doing the thing, and not histrionically, ludicrously, or in jest. 5. That it be done entirely as to all essential parts; for if we leave out any essential part of the covenant, it is no sufficient consent (as to consent that Christ shall be our Justifier, but not the Holy Ghost our Sanctifier). 6. That it be a present consent to be presently in covenant with God: for to consent that you will be his servants to-morrow or hereafter, but not yet, is but to purpose to be in covenant with him hereafter, and is no present covenanting with him. 7. Lastly, it must be a resolved and absolute consent, without any open or secret exceptions or reserves.
VII. The fruits of the covenant which God reapeth, (though he need nothing,) is the pleasing of his good and gracious will, in the exercise of his love and mercy, and the praise and glory of his grace, in his people's love and happiness for ever. The fruits or benefits which accrue to man are unspeakable, and would require a volume competently to open them: especially that God is our God, and Christ our Saviour, Head, Intercessor, and Teacher, and the Holy Ghost is our Sanctifier; and that God will regard us as his own, and will protect us, preserve us, and provide for us, and will govern us, and be our God and joy for ever; that he will pardon us, justify, and adopt us, and glorify us with his Son in heaven.
_Direct._ II. When you thus understand well the nature of the covenant, labour to understand the special reasons of it. The reasons of the matter of the covenant you may see in the fruits and benefits now mentioned. But I now speak of the reason of it as a covenant _in genere_, and such a covenant _in specie_.
1. In general, God will have man to receive life or death as an accepter and keeper, or a refuser or breaker, of his covenant, because he will do it not only as a Benefactor, or absolute Lord, but also as a Governor, and will make his covenant to be also his law, and his promise and benefits to promote obedience; and because he will deal with man as with a free agent, and not as with a brute that hath no choosing and refusing power, conducted by reason: man's life and death shall be in his own hands, and still depend upon his own will; though God will secure his own dominion, interest, and ends, and put nothing out of his own power by putting it into man's; nor have ever the less his own will, by leaving man to his own will. God will at last, as a righteous Judge, determine all the world to their final joy or punishment, according to their own choice while they were in the flesh, and according to what they have done in the body, whether it be good or evil, Matt. xxv. Therefore he will deal with us on covenant terms.
2. And he hath chosen to rule and judge men according to a covenant of grace, by a Redeemer, and not according to a rigorous law of works, that his goodness and mercy may be the fullier manifested to the sons of men; and that it may be easier for men to love him, when they have so wonderful demonstrations of his love; and so that their service here, and their work and happiness hereafter, may consist of love, to the glory of his goodness, and the pleasure of his love for ever.
[Sidenote: External baptism, what.]
_Direct._ III. Next understand rightly the nature, use, and end of baptism. Baptism is to the mutual covenant between God and man, what the solemnization of marriage is to them that do before consent; or what the listing a soldier by giving him colours, and writing his name, is to one that consented before to be a soldier.[39] In my "Universal Concord," p. 29, 30, I have thus described it: Baptism is a holy sacrament instituted by Christ, in which a person professing the christian faith (or the infant of such) is baptized in water into the name of the Father, the Son, and Holy Ghost, in signification and solemnization of the holy covenant, in which as a penitent believer (or the seed of such) he giveth up himself (or is by the parent given up) to God the Father, Son, and Holy Ghost, forsaking the devil, the world, and the flesh, and is solemnly entered a visible member of Christ and his church, a pardoned, regenerate child of God, and an heir of heaven.
[Sidenote: Complete baptism, what it is.]