Self Knowledge the knowledge of one's own nature, abilities, duties, principles, prejudices, tastes, virtues, and vices. This knowledge is commanded in the Scriptures (Ps 4:4; 2Co 13:5). It is of great utility, as it leads to humility, contrition, prayer, self denial, charity. When by self knowledge we become acquainted with our powers, resolution, and motives, then we secure self possession. To secure self knowledge there must be watchfulness, frequent and close attention to the operations of our own mind, study of the Scriptures, and dependence on divine grace.