Making sense of the Book of Acts - Conclusion

The Book of Acts ends rather abruptly, doesn't it?  From its close alone, it's evident that the Book of Acts is not primarily a history of "the birth and growth of the Church," nor even a complete record of "the acts of the apostles."* Wouldn't we like to know what happened to the twelve apostles after the raising up of Paul?  And wouldn't we like to know how Paul fared during the "two whole years at his own expense" (Acts 28:30) and after? What reading an inspired record of his last days and his trial and execution would have made! But God didn't cause Luke to write the Book of Acts in order to satisfy our curiosity. Rather, the book is intended to be the story of Israel's fall and of how salvation was sent to the Gentiles. This having been accomplished, and Israel having rejected Christ at Rome as she had done at Jerusalem and all the way between, the book ends.

*Interestingly, the title "Acts of the Apostles" (Greek Πράξεις ἀποστόλων Praxeis Apostolon) was not part of the original text. It was first used by Irenaeus at the end of the 2nd century.