After Pentecost, how was the gospel preached?

Answer

"With the Holy Ghost sent down from heaven." 1 Peter 1: 12.

By what means is sin made known?
For what are His parables noted?
Because of this, what is Christ able to do?
In what were the laws or commandments respecting sacrifices and burnt offerings written?
Wherein does the new covenant differ from and excel the old?
In what was shown the first tangible evidence of this \"falling away\" from the truth of God?
What will this prophet do when he comes?

Questions & Answers are from the book Bible Readings for the Home Circle