The greatest and the best talent that God gives to any man or woman in this world is the talent of prayer. And the best usury that any man or woman brings back to God when he comes to reckon with them at the end of this world is a life of prayer. And those servants best put their Lord's money 'to the exchangers' who rise early and sit late, as long as they are in this world, ever finding out and ever following after better and better methods of prayer, and ever forming more secret, more steadfast, and more spiritually fruitful habits of prayer, till they literally 'pray without ceasing,' and till they continually strike out into new enterprises in prayer and new achievement, and new enrichments. ~Alexander Whyte
Martin Luther, when once asked what his plans for the following day were, answered: "Work, work, from early until late. In fact, I have so much to do that I shall spend the first three hours in prayer."
Prayer is no laggard's work. When all the rich, spiced graces from the body of prayer have by labor and beating been blended and refined and intermixed, the fire is needed to unloose the incense and make its fragrance rise to the throne of God. The fire that consumes creates the spirit and life of the incense. Without fire prayer has no spirit; it is, like dead spices, for corruption and worms. The casual, intermittent prayer is never bathed in this divine fire. For the man who thus prays is lacking in the earnestness that lays hold of God, determined not to let him go until the blessing comes. "Pray without ceasing," counseled the great apostle. That is the habit that drives prayer right into the mortar that holds the building stones together. ~E.M. Bounds
You can do more than pray after you have prayed, but you cannot do more than pray until you have prayed. ~Dr. A.J. Gordon