After they had Peter and John stand before them. They asked this question: “By what power or in what name have you done this? Acts 4:7 HCSB
Upon receiving word of the healing of the blind beggar, an order was issued to seize both Peter and John and brought before the Jewish Ruling Counsel. This miraculous healing created a very uncomfortable situation within the Jewish as they feared an uprising was on the horizon. By this time, the word of the Lord had gained such a momentum and spread like wildfire throughout the region. This movement had to be stopped and stopped quickly.
They could be tried in court under Jewish law, but first a case must be built against these men so charges nay be brought against them. So they are questioned but top no avail  And since they saw the man who had been healed standing with them, they had nothing to say in response. What would be their next move? Remove the tongue, then body cannot receive instruction  However, so this does not spread any further among the people, lets threaten them against speaking to anyone in this name again.
Because of their boldness in spreading God’s word, John and Peter’s infectious spirit moved through the body of believers who were in excess of five thousand who all would testify in the name of the LORD our God, Jesus Christ. Invariably, Jewish leaders had to release them with out cause  After threatening them further, they released them. They found no way to punish them, because the people were all giving glory to God over what they had done
We are persecuted for the sake of the Gospel, so that we may stand justified before Him But now apart from the law, God’s righteousness has been revealed-attested by the law of the prophets (Romans 3:21)