18 And having called them, they charged [them] not to speak at all nor teach in the name of Jesus. 19 But Peter and John answering said to them, If it be righteous before God to listen to you rather than to God, judge ye; 20 for as for us we cannot refrain from speaking of the things which we have seen and heard. 21 But they, having further threatened them, let them go, finding no way how they might punish them, on account of the people, because all glorified God for what had taken place;
Matthew Henry's Commentary on Acts 4:18-21
Commentary on Acts 4:15-22
(Read Acts 4:15-22)
All the care of the rulers is, that the doctrine of Christ spread not among the people, yet they cannot say it is false or dangerous, or of any ill tendency; and they are ashamed to own the true reason; that it testifies against their hypocrisy, wickedness, and tyranny. Those who know how to put a just value upon Christ's promises, know how to put just contempt upon the world's threatenings. The apostles look with concern on perishing souls, and know they cannot escape eternal ruin but by Jesus Christ, therefore they are faithful in warning, and showing the right way. None will enjoy peace of mind, nor act uprightly, till they have learned to guide their conduct by the fixed standard of truth, and not by the shifting opinions and fancies of men. Especially beware of a vain attempt to serve two masters, God and the world; the end will be, you can serve neither fully.