D&C 76:6-10

Questions

What is a "mystery"?
What does it mean to have "all the hidden mysteries" revealed? Is there a difference between a mystery and a "hidden mystery"?
What is the difference between "days" of old and "ages" to come? Is there any deeper significance to using these two different ways of expressing periods of time?
What does it mean to "make known" something? Is this just another way of saying "reveal"? How does the LORD make things known to us?
What does the phrase "good pleasure of my will" mean?

What is the "wisdom of the wise"? How does it perish before revealed wisdom and understanding? How does latter day revelation stack up against modern science?
What is the "understanding of the prudent"? Who are "the prudent"?
Are these statements hyberbolic or is there a greater meaning that we're missing here?

the good pleasure of my will. In this preface to the revelation (verses 1-10) we are told in general terms of the blessings which are given to those who fear and serve God. We will then see in verses 11 and on, how this blessing was made manifest to Joseph and Sidney. What is made manifest to them is given here: the pleasure of God's will concerning the things pertaining to his kingdom or, as verse 10 puts it, the secrets of God's will. This language is closely related to Eph 1:5, 9. The point here, as there, seems to be that how and why God deals with us as he does, is not obvious to our own understanding. A similar point is made in Matt 20:1-16 and Matt 25:37-39, 44: God's will concerning our reward will often be different than the expectations of those he rewards.