And when they had prayed, the place in which they were gathered together was shaken, and they were all filled with the Holy Spirit and continued to speak the word of God with boldness. Now the full number of those who believed were of one heart and soul, and no one said that any of the things that belonged to him was his own, but they had everything in common. And with great power the apostles were giving their testimony to the resurrection of the Lord Jesus, and great grace was upon them all.
This passage I like because it teaches us that when the grace of GOD is at work in our lives, Spiritual Boldness is a common result. This was clearly the testament of the early church. They spoke the word of GOD with boldness and great grace was upon them.