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 statement is the same truth emphasized?
What will follow this union with Christ in His death and resurrection?
How does Paul, speaking of the man of sin, describe this same power?
What was done with the blood of the offering?
What unites all believers under the new covenant?
By whom were all things created?
What reason did Paul give for glorying in tribulations?

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