NET

12 They were shown that they were serving not themselves but you, in regard to the things now announced to you through those who proclaimed the gospel to you by the Holy Spirit sent from heaven—things angels long to catch a glimpse of.

Darby

12 To whom it was revealed, that not to themselves but to you they ministered those things, which have now been announced to you by those who have declared to you the glad tidings by [the] Holy Spirit, sent from heaven, which angels desire to look into.

KJV

12 Unto whom it was revealed, that not unto themselves, but unto us they did minister the things, which are now reported unto you by them that have preached the gospel unto you with the Holy Ghost sent down from heaven; which things the angels desire to look into.