To them it was revealed, that not to themselves, but to you, did they minister these things, which now have been announced to you through those who preached the Gospel to you by the Holy Spirit sent out from heaven; which things angels desire to look into.
This verse says some wonderful things about preaching, summarized by Barclay: "That it is the announcement of salvation, that it is of the Holy Spirit, and that angels themselves are intensely interested in it."[37]