1) Peter makes a defense before the religious council, of up to seventy one members or so,to explain the power of the name in healing. Note that the name, ha shem is a Hebrew phrase for God.

2) Please don't get all caught up if Anna was really the high priest or his son in law Caiaphas.

3) Acts is concerned with magic power, as well as religious. It lies behind the question, in my view. See some early work by susan Garrett of LPTS

4)Like a prophet, peter has Spirit-filled utterance. Often the word, heal, sozo, is the smae as the word to save.

5) He uses Ps 118:22. this apparently was used to see the work of jesus in a new light by early christians. We read it a lot during Holy week. the end of this section takes us back to Joel again.

6)One could play with building metaphors here, with capstone, cornerstone.

7) Some take this as exclusive. it is a good place to consider universalism.