(20) We cannot but speak . . .--The pronoun is emphatic: "we, for our part" . . . The question at issue was one of bearing witness, and that witness they had received a special command to bear (Acts 1:8).

Verse 20. - Saw and heard for have seen and heard, A.V. We cannot but speak, etc. We have here another instance of Peter's boldness of speech under the influence of the Holy Ghost.

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.For we cannot but speak,.... It was not physically, but morally impossible; or it was not lawful, and therefore they would not speak any other, and they could not avoid speaking, say they,

the things which we have seen and heard; as the miracles and doctrines of Christ, his resurrection from the dead, of which they were eye and ear witnesses. This shows their great fidelity and integrity, their inviolable attachment to Christ, and their fearlessness of the displeasure and wrath of men.