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.

For what purpose were the Scriptures written?
How does the Revelator describe this satanic desire to destroy Christ?
26. What event is directly connected with the blotting out of sin and the final refreshing from God's presence?
Who is this dragon?
Because of disobedience, what experience came to Israel ?
On opening the fifth seal, what was seen under the altar?
Referring to Peter's coming sore trial, for what did Christ say He had prayed?

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