John Calvin on Acts 13:31

31. After that he hath said that Christ came out of the grave, which was beset with the hired ministers of the adversaries, he addeth now that he appeared to many of the disciples, which bare faithful witness to the people. And he calleth them witnesses, either in respect of their office; because they were chosen for this purpose, as we have already said in the first chapter, (Acts 1:8;) or else declaring simply that they professed openly and freely that which they knew concerning Christ. Whereupon it followeth that the matter was made known openly “Probe fuisse testatem,” was well attested. at Jerusalem. And the proof was not so light; because, in the fearful power of the enemies, who were ready and bent to resist, and did omit nothing, there were, notwithstanding, such as did openly affirm that Christ rose again, and were also such as saw that thing with their eyes; for if there had been any refutation in readiness, the scribes would not have neglected it.

Acts 13:32-37

32. And we preach to you glad tidings, that the promise made to the fathers, 33. Hath God fulfilled to their children: having raised up Jesus, as it is written in the second Psalm, Thou art my Son, this day have I begotten thee. 34. And in that he hath raised him up from the dead, not to return hereafter to corruption, he hath said thus, I will give you the holy things of David. 35. Therefore he saith also in another place, Thou shalt not suffer thine Holy One to see corruption. 36. David, indeed, when he had served his time, by the counsel of God he fell on sleep, and was laid unto his fathers, and saw corruption. 37. But he whom God raised saw no corruption.