Meditation doth discriminate and characterise a man; by this he may take a measure of his heart, whether it be good or bad; let me allude to that; “For as he thinketh in his heart, so is he.” Prov. 23:7. As the meditation is, such is the man. Meditation is the touchstone of a Christian; it shows what metal he is made of. It is a spiritual index; the index shows what is in the book, so meditation shows what is in the heart.—Thomas Watson’s Saints’ Spiritual Delight.