'Unfolded' in the Bible

and there was given over to him a roll of Isaiah the prophet, and having unfolded the roll, he found the place where it hath been written:

And he began to speak boldly in the synagogue. And Aquila and Priscilla, having heard him, took him to them and unfolded to him the way of God more exactly.

Therefore, I strongly urge the elders among you [pastors, spiritual leaders of the church], as a fellow elder and as an eyewitness [called to testify] of the sufferings of Christ, as well as one who shares in the glory that is to be revealed: