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.
What is your part? Just believing. You know, God's done all the work. He didn't leave anything as important as the work to someone as weak as you. You'd mess it up. So God did all the work and all that is left for you to do is to believe the work of God.