How necessary is the experience of sanctification?

Answer

"Follow after peace with all men, and the sanctification without which no man shall see the Lord." Heb. 12
: 14, R.V.

What effect does obedience to the truth have?
What, therefore, did God do?
By what is the knowledge of sin?
By whom were the worlds made?
Who did He say would be saved?
What Christian grace are we exhorted to exercise in our expectant longing for this event?
Did this doctrine exist in ancient times?

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