Uh... you're joking, right?
What is the subject of the Acts 1 Chapter regarding Jesus Christ and His Apostles? You mean you didn't see anything written there about proof of Christ's resurrection with appearing among His disciples in an upper closed off room? Acts 2 happened AFTER that Acts 1 Chapter.
And in Acts 2:22-32 Apostle Peter is SPECIFICALLY preaching The Gospel of Jesus Christ! How could you miss that?
And once those present who had yet to believe heard Peter preach The Gospel, they then asked what should they do, and Acts 2 states...
Acts 2:37-42
37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, "Men and brethren, what shall we do?"
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.
39 For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call."
40 And with many other words did he testify and exhort, saying, "Save yourselves from this untoward generation."
41 Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls.
42 And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.
KJV
I don't get why you are saying this I said Peter preached the resurrection, but not salvation by the cross.What is the subject of the Acts 1 Chapter regarding Jesus Christ and His Apostles? You mean you didn't see anything written there about proof of Christ's resurrection with appearing among His disciples in an upper closed off room? Acts 2 happened AFTER that Acts 1 Chapter.
[Act 2:23 KJV] 23 Him, being delivered by the determinate counsel and foreknowledge of God, ye have taken, and by wicked hands have crucified and slain:......................Peter preached the crucifixion as a murder indictmentAnd in Acts 2:22-32 Apostle Peter is SPECIFICALLY preaching The Gospel of Jesus Christ! How could you miss that?
[Act 2:30 KJV] 30 Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne;................................Peter is not preaching the resurrection for our justification unto eternal life, but that Jesus was raised to sit on David's throne in the kingdom on earth
Where do you see that Jesus's died for our sins and rose for our justification..............where do you find him preaching faith in his blood?
I don't know what you see in these verses since you didn't provide any commentary, but I will address pertinent versesActs 2:37-42
37 Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, "Men and brethren, what shall we do?"
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.
39 For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call."
40 And with many other words did he testify and exhort, saying, "Save yourselves from this untoward generation."
41 Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls.
42 And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.
KJV
[Act 2:38 KJV] 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...............They were to repent of crucifying the Lord Jesus and were commanded to be water baptized for the remission of sins. Water baptism forgave their sins and was commanded to enter the kingdom.