Concerning (Acts 2:38) of course it is inspired Scripture and part of our doctrine. The Israelite always must repent and be baptized in Jesus name, as the Jews had the truth but turned away from it. See (Acts 2:22-36). "Ye men of Israel...."
Concerning (Acts 15:29) of course it is inspired Scripture and part of our doctrine. As it says, "...from which if ye keep yourselves, you shall do well..."
Concerning (Acts 15:38) of course it is inspired Scripture and part of our doctrine. It shows the different way God uses men through the Holy Spirit. Paul had the mission in view. Not wise to take a new believer on such a mission, especially since he abandoned them the first time. Barnabas had the person in view. Barnabas would be instrumental in developing Mark's maturity as a believer. Both men were right, the Holy Spirit was using both in different ways.
Quantrill
OK, you are the only one trying to answer, so what about this?
What was inspired, the authors, or the autographs? Or the ones writing their words down? What about additions? Which textual version is inspired?
Was inspiration about every word or about message? Is poetry or history as inspired and for doctrine as words of Christ etc?
What makes Scripture to be a Scripture? Where did you get your list of Scriptures from?
Do you believe people should be baptized "in the name of Jesus"?
Or, do you believe that meat sacrificed to idols is not allowed to eat?
Or, do you believe that the workers of God should argue with each other and not give another chance (Paul, Barnabas...)?
Which version of Jeremiah is inspired, the shorter or the longer one?
Which version of Isaiah is inspired, the MT or the Old Greek?
Which version of Daniel is inspired, the Old Greek, Theodotion or the MT? Are Greek additions to Daniel inspired, too?
Are additions to books of Moses inspired? Was Adam created before or after animals?
Are proverbs added by other persons than by Salomon also inspired?
Is Esther inspired? Why? Which version of Esther, the one without word "God" in it (the masoretic version) or the one with the long prayer to God (the LXX)?
Is Sirach inspired? Why not?