He said, "I am the voice of one crying in the wilderness, 'Make straight the way of the Lord,' as Isaiah the prophet said."

 But there is a human side to this. What God offers, man has to appropriate. A human father may offer his son his love, his advice, his friendship, and the son may refuse it and prefer to take his own way. It is so with God; God offers us the right to become sons but we need not accept it. 