Jesus said in the word "when you pray" not If you pray because He knows that a true believer loves His time with God.   

Matthew 6:6 tells us "but when you pray, go into your room, and when you have shut our door, pray to your Father who is in the secret place."  The book guides us through the meaning of this passage in that the Lord is instructing believes to isolate and talk to the Father. 

Bishop McClendon states "There can be no power in our public lives if there is no consecration in our private lives."