John Gill's Bible Commentary Ver. 5. For if we have been planted together , etc..] This is not to be understood of an implantation of Jews and Gentiles together in One body; nor of an implantation of believers together in a church state; but of an implantation of Christ and his people together; which is openly done at conversion, in consequence of a secret union with him before; when they are transplanted from a state of nature, and are ingrafted into Christ; have the graces of the Spirit of God implanted in them, and grow up under the dews of grace, and shinings of the sun of righteousness upon them, and bring forth much fruit; now as these persons, by virtue of their secret union with Christ from eternity, as their head and representative, with whom they were crucified, in whom they died representatively, share in his death, enjoy the benefits of it, and feel its efficacy, and through it become dead to the law, sin, and the world, which is meant by the likeness of his death ; so these same persons shall be also planted in the likeness of his resurrection ; that is, they shall share in the benefits, and feel and enjoy the effects of it; not only their bodies will be raised at the last day, as their souls are now regenerated by virtue of it, and in resemblance to it; but their are, and shall be so influenced by his Spirit and grace, which has raised them from death to life, that they shall walk in newness of life; of which baptism is a lively representation, and to which it is a constant obligation.
Matthew Henry Commentary
Verses 3-10 - Baptism teaches the necessity of dying to sin, and being as it wer buried from all ungodly and unholy pursuits, and of rising to walk with God in newness of life. Unholy professors may have had the outward sig of a death unto sin, and a new birth unto righteousness, but they neve passed from the family of Satan to that of God. The corrupt nature called the old man, because derived from our first father Adam, is crucified with Christ, in every true believer, by the grace derive from the cross. It is weakened and in a dying state, though it ye struggles for life, and even for victory. But the whole body of sin whatever is not according to the holy law of God, must be done away, s that the believer may no more be the slave
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