Your mind is under constant bombardment. This is not by accident. It is a strategic assault by the forces of evil, in the knowledge that the mind is what John Calvin called the "citadel" to the soul, the pre-eminent part of man set by his Creator to be the control hub for his entire life.Deep Discipleship, 82
That your mind depends more on the agency of God than the freedom of your own choice, daily experience teaches. Your judgement often fails, and in matters of no great difficulty, your courage flags; at other times, in matters of the greatest obscurity, the mode of explicating them at once suggests itself, while in matters of moment and danger, your mind rises superior to every difficulty. In this way, I interpret the words of Solomon, "The hearing ear, and the seeing eye, the Lord hath made even both of them" (Prov 20:12). For they seem to me to refer not to their creation, but to peculiar grace in the use of themInstitutes, Book 2, Chapter 4