Augustine of Hippo, On the Merits and Forgiveness of Sins, and on the Baptism of Infants I.52: From the Acts of the Apostles

To the like effect, in the Acts of the Apostles, the Apostle Peter designated the Lord Jesus as “the Author of life,” upbraiding the Jews for having put Him to death in these words: “But ye dishonoured and denied the Holy One and the Just, and desired a murderer to be granted unto you, and ye killed the Author of life.” While in another passage he says: “This is the stone which was set at nought by you builders, which is become the head of the corner. Neither is there salvation in any other: for there is none other name under heaven given among men whereby we must be saved.” And again, elsewhere: “The God of our fathers raised up Jesus, whom ye slew, by hanging on a tree. Him hath God exalted with His right hand to be a Prince and a Saviour, for to give repentance to Israel, and forgiveness of sins.” Once more: “To Him give all the prophets witness, that, through His name, whosoever believeth in Him shall receive remission of sins.” Whilst in the same Acts of the Apostles Paul says: “Be it known therefore unto you, men and brethren, that through this Man is preached unto you the forgiveness of sins: and by Him every one that believeth is justified from all things, from which ye could not be justified by the law of Moses.”