"If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you of heavenly things?" (John 3:12).

"Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son" (II John 9).

"Blessed is the people that know the joyful sound: they shall walk, O Lord, in the light of thy countenance" (Psalm 89:15).

"Beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day" (II Peter 3:8).

"Pray without ceasing" (I Thessalonians 5:17).

This is, no doubt, the shortest commandment in the Bible, and seemingly the most difficult to obey. How could anyone possibly pray without ceasing? What about sleeping, or working, or other necessary pursuits?