Why does God manifest such mercy and long-suffering toward men?

Answer

"The Lord is not slack concerning His promise, as some men count slackness; but is long-suffering to
usward, not willing that any should perish, but that all should come to repentance." 2 Peter 3: 9.

In what way is this comparison further explained?
Did God's chosen people receive Christ when He came?
Whose destruction was made certain by the death of Christ ?
How should the youth he taught to regard the aged?
What is said of the character of these scaled ones?
When and by whom was the Council of Nice convened?
What is to be finished when the seventh trumpet is about to sound?

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