There is ample proof, through the life of Jesus, that prayer is God’s idea.  For Jesus, who is really God come to us in the flesh, commanded us to pray, taught us to pray, and demonstrated prayer to us.

He commanded us to pray.  Jesus would not have commanded us to pray unless prayer was His idea and His Father’s idea.  All that He commands the believer is part of His plan.  So when He commands us to “watch and pray,” when he says “ask, seek, and knock,” and when He says “men ought to pray and not to faint,” that indicates to me that prayer is His idea and that He is trying to relay that idea to us.  He wants us to know that it will work if we will do it as He says.

He taught us to pray.  Jesus would not have taken such great pains…