For what purpose is the mystery of the gospel made manifest?

Answer

But now [the mystery] is made manifest, and by the Scriptures of the prophets, according to the
commandment of the everlasting God, made known to all nations for the obedience of faith." Rom. 16: 26.

In what way is this comparison further explained?
How is Christ's resurrection foretold in the Psalms?
What great truth was then stated?
What will be the standard in the judgment?
12. Do Catholic authorities acknowledge that there is no command in the Bible, for the sanctification of Sunday?
In what words did He foretell its destruction?
Did the early disciples think that death would he the second coming of Christ?

Questions & Answers are from the book Bible Readings for the Home Circle