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.

Upon what ground does God's work for sinners rest?
On what did God write the Ten Commandments?
According to the New Testament, what day immediately precedes the first day of the week?
On what day was John in the Spirit?
How was the flood stayed, and Satan's -design defeated?
In what condition did David expect to rise?
What is to be their fate?

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