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 precedes the manifestation of sin ?
Upon how many does God bestow His blessings?
How did some of the believers at Ephesus testify to the sincerity of the confession of their sins?
By what should we test, or prove, all doctrine?
With what was He filled?
Whose presence does the Holy Spirit bring to the believers?
What does the Bible present as the object of signing or sealing a document?

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