" By His Holy Spirit, He has access to our heart, and teaches us to pray by showing us the sin that hinders the prayer, or giving us the assurance that we please God. He teaches, by giving not only thoughts of what to ask or how to ask, but by breathing within us the very spirit of prayer, by living within us as the Great Intercessor. We may indeed and most joyfully say, 'Who teacheth like Him?' Jesus never taught His disciples how to preach, only how to pray. He did not speak much of what was needed to preach well, but much of praying well. To know how to speak to God is more than knowing how to speak to man. Not power with men, but power with God is the first thing. Jesus loves to teach us how to pray. "

― Andrew Murray , Lord, Teach Us To Pray