Peter and Paul preached different messages on the name of Jesus:
Peter and the twelve preached whosoever believed in the name of Jesus was saved.
[Jhn 1:12 KJV] 12 But as many as received him, to them gave he power to become the sons of God, [even] to them that believe on his name:
[Jhn 3:18 KJV] 18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
[Jhn 20:31 KJV] 31 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.
There was no mention of reconciliation by the cross (Colossians 1:20), and in fact the understanding of the death and resurrection was hid from the twelve (Luke 18:34).
[Col 1:20 KJV] 20 And, having made peace through the blood of his cross, by him to reconcile all things unto himself; by him, [I say], whether [they be] things in earth, or things in heaven.
[Luk 18:34 KJV] 34 And they understood none of these things: and this saying was hid from them, neither knew they the things which were spoken.
Paul preached salvation in the name of Jesus (1 Corinthians 1:2 1 Corinthians 6:11 Ephesians 5:20) and by the cross (1 Corinthians 1:18 Colossians 1:20 Galatians 6:14 Ephesians 2:16) and the mystery (Romans 16:25) The mystery was that all could be saved, Jew and Gentile, by believing his gospel ( 1 Corinthians 15:1,3,4) and become a new creature (2 Corinthians 5:17) in the body of Christ (1 Corinthians 12:27).
[1Co 1:2 KJV] 2 Unto the church of God which is at Corinth, to them that are sanctified in Christ Jesus, called [to be] saints, with all that in every place call upon the name of Jesus Christ our Lord, both theirs and ours:
[1Co 1:18 KJV] 18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.
[Rom 16:25 KJV] 25 Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began,
[1Co 15:1, 3-4 KJV] 1 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand; ... 3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; 4 And that he was buried, and that he rose again the third day according to the scriptures:
[2Co 5:17 KJV] 17 Therefore if any man [be] in Christ, [he is] a new creature: old things are passed away; behold, all things are become new.
[1Co 12:27 KJV] 27 Now ye are the body of Christ, and members in particular.
Peter and the twelve preached whosoever believed in the name of Jesus was saved.
[Jhn 1:12 KJV] 12 But as many as received him, to them gave he power to become the sons of God, [even] to them that believe on his name:
[Jhn 3:18 KJV] 18 He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God.
[Jhn 20:31 KJV] 31 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.
There was no mention of reconciliation by the cross (Colossians 1:20), and in fact the understanding of the death and resurrection was hid from the twelve (Luke 18:34).
[Col 1:20 KJV] 20 And, having made peace through the blood of his cross, by him to reconcile all things unto himself; by him, [I say], whether [they be] things in earth, or things in heaven.
[Luk 18:34 KJV] 34 And they understood none of these things: and this saying was hid from them, neither knew they the things which were spoken.
Paul preached salvation in the name of Jesus (1 Corinthians 1:2 1 Corinthians 6:11 Ephesians 5:20) and by the cross (1 Corinthians 1:18 Colossians 1:20 Galatians 6:14 Ephesians 2:16) and the mystery (Romans 16:25) The mystery was that all could be saved, Jew and Gentile, by believing his gospel ( 1 Corinthians 15:1,3,4) and become a new creature (2 Corinthians 5:17) in the body of Christ (1 Corinthians 12:27).
[1Co 1:2 KJV] 2 Unto the church of God which is at Corinth, to them that are sanctified in Christ Jesus, called [to be] saints, with all that in every place call upon the name of Jesus Christ our Lord, both theirs and ours:
[1Co 1:18 KJV] 18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.
[Rom 16:25 KJV] 25 Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began,
[1Co 15:1, 3-4 KJV] 1 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand; ... 3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; 4 And that he was buried, and that he rose again the third day according to the scriptures:
[2Co 5:17 KJV] 17 Therefore if any man [be] in Christ, [he is] a new creature: old things are passed away; behold, all things are become new.
[1Co 12:27 KJV] 27 Now ye are the body of Christ, and members in particular.
