"I seek at the beginning to get my heart into such a state that it has no will of its own in regard to a given matter."
"Earthly friends may alter their minds regarding the work in which we are engaged; but if indeed we work for God, whoever may alter his mind regarding our service, He will not. Earthly friends may lose their ability to help us, however much they may desire to do so; but He remains throughout eternity the infinitely Rich One. Earthly friend might have their minds, after a time, diverted to other objects, and, as they cannot help everywhere, much as they may desire it, they may, though reluctantly, have to discontinue to help us; but He is able, in all directions, though the requirements were multiplied a million times, to supply all that can possibly be needed, and does it with delight, where His work is carried on and where He is confided in. Earthly friends may be removed by death, and thus we may lose their help, but He lives forever, He cannot die. "
If you haven't read anything by or about George Mueller, I highly recommend that you do so!