He who is the beginning of all things, must likewise of necessity be the end of them all; and then are our intentions rightest and purest, when we are most possessed with the desire of that highest end, the glory of God, and look straightest unto it.
And if this purpose ought to diffuse itself through all our actions, certainly, in prayer, it should be most lively and active, because prayer is so direct and express a turning of the face of the soul unto God, and setting of its eye upon Him.
Robert Leighton, An Exposition of the Lord’s Prayer (1701) in The Whole Works of the Most Reverend Father in God, Robert Leighton, D.D., Archbishop of Glasgow (2 vols, London: James Duncan, 1828), 2: 336.
