Acts 4:2-3, 7-10, 13-14, 18, 20

being grieved that they taught the people, and preached through Jesus the resurrection from the dead. And they laid hands on them, and put them in hold unto the next day: for it was now eventide.

And when they had set them in the midst, they asked, By what power, or by what name, have ye done this? Then Peter, filled with the Holy Ghost, said unto them, Ye rulers of the people, and elders of Israel, if we this day be examined of the good deed done to the impotent man, by what means he is made whole; be it known unto you all, and to all the people of Israel, that by the name of Jesus Christ of Nazareth, whom ye crucified, whom God raised from the dead, even by him doth this man stand here before you whole.

Now when they saw the boldness of Peter and John, and perceived that they were unlearned and ignorant men, they marvelled; and they took knowledge of them, that they had been with Jesus. And beholding the man which was healed standing with them, they could say nothing against it.

And they called them, and commanded them not to speak at all nor teach in the name of Jesus.

For we cannot but speak the things which we have seen and heard.