You mean the same book of Acts in which it showed Peter, the Gentiles and Paul keeping the commandment:
Peter proving the dietary laws were still valid since he still had not eaten anything unclean years after Jesus death.
Acts 10:14King James Version (KJV)
14 But Peter said, Not so, Lord; for I have never eaten any thing that is common or unclean.
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The Gentiles keeping the Sabbath in Acts 15:21 as they grew in their faith
Acts 15:21
21 For Moses of old time hath in every city them that preach him, being read in the synagogues every Sabbath day.
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Paul keeping the Feast Days
Day of Pentecost
Acts 2:1
2 When the
Day of Pentecost had fully come, they were all with one accord[
a] in one place.
-How did they receive the holy spirit after Jesus died? They were observing the Day of Pentecost that Sunday.
Acts 20:16
16 For Paul had decided to sail past Ephesus, so that he would not have to spend time in Asia; for he was hurrying to be at Jerusalem, if possible, on the
Day of Pentecost.
-Paul was hurrying to observe this feast and Jesus has been dead for years.
Passover and Unleavened Bread
Acts 20:6(NKJV)
6 But we sailed away from Philippi after the
Days of Unleavened Bread, and in five days joined them at Troas, where we stayed seven days.
-Why even mention Unleavened Bread, if it was abolished and no longer being observed.
Acts 12:1-4
12 Now about that time Herod the king stretched out
his hand to harass some from the church. 2 Then he killed James the brother of John with the sword. 3 And because he saw that it pleased the Jews, he proceeded further to seize Peter also. Now it was
during the
Days of Unleavened Bread. 4 So when he had arrested him, he put
him in prison, and delivered
him to four squads of soldiers to keep him, intending to bring him before the people after
Passover.
-Verse 3 shows that they were keeping the Passover and Unleavened bread
Feast of Tabernacles
Acts 18:20-21
20 When they asked
him to stay a longer time with them, he did not consent, 21 but took leave of them, saying, “
I must by all means keep this coming feast in Jerusalem; but I will return again to you, God willing.” And he sailed from Ephesus.
The Day of Atonement
Acts 27:9-10
9 Now when much time had been spent, and sailing was now dangerous because the
Fast was already over, Paul advised them, 10 saying, “Men, I perceive that this voyage will end with disaster and much loss, not only of the cargo and ship, but also our lives.”
-Paul is referring to the Fast on the Day of Atonement. Luke wrote the book of Acts many years after Christ’s death and he referred to the Day of Atonement calling it the “Fast”
So why was Paul still observing all of these Feasts years after Christ death, if they were abolished and no longer needed?
Wouldnt Paul have received the revelations on the road to Damascus, when Jesus revealed himself to him that they were no longer needed?