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.

How intimate is His union with believers?
Is there any danger of God's chosen people forgetting Him?
What, according to its constitution, is the avowed object of the National Reform Association?
What part will the angels have in this event?
Are the angels interested in the plan of salvation?
To whom has God given the earth?
In the new earth, what will he no more?

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