But those who wait on the Lord shall renew their strength; they shall mount up with wings like eagles, they shall run and not be weary, they shall walk and not faint.—Isaiah 40:31
It is possible to work far beyond the normal strength of the human constitution and yet experience little or no fatigue because the energy for the work has been provided, not by the burning up of human tissue, but by the indwelling Spirit of power. This has been realized by a few unusual souls, and the pity is that they are unusual.
Attention has recently been focused upon the fact that ministers suffer a disproportionately high number of nervous breakdowns compared with other men. The reasons are many, and for the most part they reflect credit on the men of God. Still I wonder if it is all necessary. I wonder whether we who claim to be sons of the new creation are not allowing ourselves to be cheated out of our heritage. Surely it should not be necessary to do spiritual work in the strength of our natural talents. God has provided supernatural energies for supernatural tasks. The attempt to do the work of the Spirit without the Spirit's enabling may explain the propensity to nervous collapse on the part of Christian ministers. The Size of the Soul, 184-185.
"Lord, today I pray for that pastor who is about to give up and quit from sheer exhaustion (as I write I think of the close friend suffering with cluster headaches, exacerbated by the stress of heavy responsibility). For my friend, and any others, give that supernatural enabling. Amen."