New Defender's Study Bible Notes
4:24 which hast made heaven. The first Christians firmly believed in a personal omnipotent Creator, who had now become man in the person of Jesus Christ, whom their own religious leaders had rejected. Knowing Him, they were glad to suffer persecution for His name’s sake (Acts 5:41).
4:25 thy servant David. Psalm 2:1-2 is quoted here in Acts 4:25-26, then applied in Acts 4:27-28. It is noteworthy that David is not actually listed as author of this psalm in a superscript in the book of Psalms itself, as was true for most of his psalms. This suggests that some of the other anonymous psalms may also have been written by David.
4:25 heathen. The reference to the “heathen” or “Gentiles” was meant to apply to Herod, Pilate and the other Gentiles who persecuted and executed Jesus. “The people,” therefore, refers to the Jewish mob and their leaders who were guilty of the same crime.