We are buried with him by baptism into death - It is probable that the apostle here alludes to the mode of administering baptism by immersion, the whole body being put under the water, which seemed to say, the man is drowned, is dead; and, when he came up out of the water, he seemed to have a resurrection to life; the man is risen again; he is alive! He was, therefore, supposed to throw off his old Gentile state as he threw off his clothes, and to assume a new character, as the baptized generally put on new or fresh garments. I say it is probable that the apostle alludes to this mode of immersion; but it is not absolutely certain that he does so, as some do imagine; for, in the next verse, our being incorporated into Christ by baptism is also denoted by our being planted, or rather, grafted together in the likeness of his death; and Noah's ark floating upon the water, and sprinkled by the rain from heaven, is a figure corresponding to baptism, 1 Peter 3:20 , 1 Peter 3:21 ; but neither of these gives us the same idea of the outward form as burying. We must be careful, therefore, not to lay too much stress on such circumstances. Drowning among the ancients was considered the most noble kind of death; some think that the apostle may allude to this. The grand point is, that this baptism represents our death to sin, and our obligation to walk in newness of life: without which, of what use can it or any other rite be?
Raised up from the dead by the glory of the Father - From this we learn, that as it required the glory of the Father, that is, his glorious energy, to raise up from the grave the dead body of Christ, so it requires the same glorious energy to quicken the dead soul of a sinner, and enable him to walk in newness of life.