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.

Upon what conditions is an understanding of divine things promised ?
What additional curse came as the result of the first sin?
How many are sinners?
For how long does marriage bind the contracting parties?
How does Joel describe the day of the Lord?
How long will they live?
In what one promise are all these promises summed up?

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