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 writings are specifically mentioned as containing some things difficult to understand?
At what cost did even He learn the lesson of obedience?
To what indignities did Herod subject the Saviour?
What is the fear of the Lord declared to be?
How are those described who heed this warning?
On what day was John in the Spirit?
If one lacks wisdom, what is he told to do?

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