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.

What gave special force to the oath of an angel?
What is the measure of the greatness of God's mercy?
What do those born of God not do?
How did His questions and answers impress those who heard Him?
What became of the various parts of the image?
In what is the wrath of God filled up?
If an answer does not come at once, what should we do?

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