How did Jesus emphasize the necessity of conversion?

Answer

"Verily I say unto you, Except you be converted, and become as little children, you shall not enter into the
kingdom of heaven!' Matt. 18: 3.

In what other way is this same truth stated?
From whom does faith come?
After creating man, what did God say?
What did He thus abolish?
What does Christ proclaim Himself to be?
What was to occur under the fourth trumpet?
What was to be the character of the last three trumpets?

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