How art thou admonished and assured by holy baptism, that the one sacrifice of Christ upon the cross is of real advantage to thee?

Thus: That Christ appointed this external washing with water, (a) adding thereto this promise, (b) that I am as certainly washed by his blood and Spirit from all the pollution of my soul, that is, from all my sins, (c) as I am washed externally with water, by which the filthiness of the body is commonly washed away.

(a) Matt.28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: (b) Matt.28:19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: Acts 2:38 Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. Matt.3:11 I indeed baptize you with water unto repentance: but he that cometh after me is mightier than I, whose shoes I am not worthy to bear: he shall baptize you with the Holy Ghost, and with fire: Mark 16:16 He that believeth and is baptized shall be saved; but he that believeth not shall be damned. John 1:33 And I knew him not: but he that sent me to baptize with water, the same said unto me, Upon whom thou shalt see the Spirit descending, and remaining on him, the same is he which baptizeth with the Holy Ghost. Rom.6:3 Know ye not, that so many of us as were baptized into Jesus Christ were baptized into his death? Rom.6:4 Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life. (c) 1 Pet.3:21 The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ: Mark 1:4 John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins. Luke 3:3 And he came into all the country about Jordan, preaching the baptism of repentance for the remission of sins.