The sermons in Acts are deeply rooted in the Old Testament.
‘You study the Scriptures diligently because you think that in them you have eternal life. These are the very Scriptures that testify about me’ John 5:39 NIV
Jesus understood (and taught his disciples) that His story was writ large on the pages of the Old Testament. It is only to the extent that they point to Jesus that they have any power.
Truly studying Moses, David or Jeremiah (or anyone) quickly shows that they aren’t held up as heroes (the authors go to great lengths to be honest about their numerous shortcomings). Rather, their imperfections and limitations point to the need of a true hero, a perfect Son, a real Provider, an ultimate Deliverer.
That’s why it is so fascinating to observe the way the early disciples taught the Good News. Those who had sat with Jesus and seen how he read the scriptures where the ones (like Peter) who filled their sermons (in Acts) with Old Testament truths.
The whole Bible is about Jesus! Its about what he came to do, His lavish grace, His power to save.
It’s about a judge, a judgement and a savior who did what we could not do.