When reading Acts, one can just read it as a story recounting how the gospel spread out from Jerusalem. However, in the details of the story are some phrases or wording that can cause profound theological ideas, for those who are so inclined, to ponder!
For example, as we are reading how Paul and Barnabas traveled to the cities in Galatia on their mission trip, we read, “When the Gentiles heard this, they were glad and honored the word of the Lord; and all who were appointed for eternal life believed.” (13:48)
What is that? …all who were appointed? Well, I like to ponder theological issues! Is this a verse to hang my “predestination hat” on? Well…not so fast….Scholars have spent a lot of time studying the word “appointed” (Greek= tasso). I am going to defer to their study since I don’t have the time to do it myself.😜 The phrase “are appointed” can also mean “have been arranged”, like putting in order or positioning. Therefore a paraphrasing of this verse could be, “As many as had been prepared for eternal life believed.”
Having a heart prepared to hear the good news is very different than having a heart predestined to choose Jesus. So, I’m not going to be quick to use this verse to prove any point on the predestination stance.
If you want to read more on this verse, I found this article to be helpful: https://faithalone.org/magazine/y2007/2jan07.html