Samuel Miller said this quote

“ But let no humble devoted follower of Jesus Christ, who truly desires to serve and glorify him, and who is willing, from the heart, to do all that God shall enable him, for the promotion of the Redeemer's kingdom;--let not him be deterred, by the representation which has been given from accepting the office, if called to it by his Christian brethren. The deeper his sense of his own unfitness, the more likely will he be to apply unceasingly and importunately for heavenly aid; and the nearer he lives to the throne of grace, the more largely will he partake of that wisdom and strength which he needs. There are, no doubt, some, as was said, who are really unqualified for this office; but in general, it may be maintained, that those who have the deepest impression of the importance and arduousness of its duties, and of their own want of adequate qualifications, are far better prepared for those duties, than such as advance to the discharge of them with unwavering, confidence and self-complacency. ”