Why was the gospel to be preached to the Gentiles?

Answer

"Simeon hath declared how God at the first did visit the Gentiles, to take out of them a people for His
name." Acts 15: 14.

What explains God's apparent delay in dealing with Sin ?
What rendered it possible for God to treat sinners thus?
What is sin?
What trying experience did Christ then foretell?
What will this prophet do when he comes?
Out of what will they be judged?
When Christ comes, who will come with Him, and what will they do?

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