43. To him give all the prophets witness--that is, This is the burden, generally of the prophetic testimony. It was fitter thus to give the spirit of their testimony, than to quote them in detail on such an occasion. But let this apostolic statement of the evangelical import of the Old Testament writings be devoutly weighed by those who are disposed to rationalize away this element in the Old Testament.
      whosoever believeth in him--This was evidently said with special reference to the Gentile audience then before him, and formed a noble practical conclusion to the whole discourse.

JFB.