And when they had called in the apostles, they beat them and charged them not to speak in the name of Jesus, and let them go. Then they left the presence of the council, rejoicing that they were counted worthy to suffer dishonor for the name. And every day, in the temple and from house to house, they did not cease teaching and preaching that the Christ is Jesus. (Acts 5:40-42)
It’s hard to not look at the boldness and bravery of the disciples and simply place them in a category of faith above and beyond anything that we can exhibit or experience in our own lives. However, we must not forget that these same disciples ran scared after our Lord's crucifixion, and it was this same Peter who on three different occasions denied even knowing who Jesus was shortly after He was taken into custody.
What happened to these men in such a short amount of time?
This transformation makes little sense.
I find it extremely difficult to explain what might have happened to these men other than the fact that Jesus actually arose from the dead and gave them a supernatural power unlike anything else we see in this world. They saw Him suffer with their very own eyes, and then they saw Him come back from the dead three days later. They watched Him ascend up into heaven, and then they experienced first hand the supernatural indwelling of the Spirit that Jesus had promised them.
What could possibly silence these men now?
These men were so utterly convinced of the validity of their message that nothing was going to get in their way.
Jesus, apart from You the radical transformation of these men is nothing more than lunacy. But these men weren’t crazy; they were just convinced! Lord, erase my doubts and empower my heart to embrace invincibility.