B.B. Warfield, “The Religious Life of Theological Students“:
We are frequently told, indeed, that the great danger of the theological student lies precisely in his constant contact with divine things.
They may come to seem common to him, because they are customary.
As the average man breathes the air and basks in the sunshine without ever a thought that it is God in his goodness who makes his sun to rise on him, though he is evil, and sends rain to him, though he is unjust; so you may come to handle even the furniture of the sanctuary with never a thought above the gross early materials of which it is made.
The words which tell you of God’s terrible majesty or of his glorious goodness may come to be mere words to you—Hebrew and Greek words, with etymologies, and inflections, and connections in sentences.
The reasonings which establish to you the mysteries of his saving activities may come to be to you mere logical paradigms, with premises and conclusions, fitly framed, no doubt, and triumphantly cogent, but with no further significance to you than their formal logical conclusiveness.
God’s stately stepping in his redemptive processes may become to you a mere series of facts of history, curiously interplaying to the production of social and religious conditions, and pointing mayhap to an issue which we may shrewdly conjecture: but much like other facts occurring in time and space, which may come to your notice.
It is your great danger.