None of them verses say a person is saved from their sins by the preaching of the Gospel. Christ saves His People from their sins Matt 1 21Rom. 1:16 —KJV
“¶ For I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.”
John 20:31 —KJV
“But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.”
Eph. 1:13 —KJV
“In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,”
And she shall bring forth a son, and thou shalt call his name JESUS: for he shall save his people from their sins.