Let them not fast to man, but to God. Worldliness is one of the greatest dangers that beset man's soul. Life or death depends on the answer we can give to these questions. If our treasure is earthly, our hearts will be earthly also. Where your treasure is, there will your heart be.
Singleness of purpose is one great secret of spiritual prosperity.
If our eyes do not see distinctly, we cannot walk without stumbling and falling. If we attempt to work for two different masters, we are sure to give satisfaction to neither. It is just the same with respect to our souls. Unless our hearts are so ordered, everything will be in confusion. Thy whole body shall be full of darkness.