Let us know, furthermore, that “growth in grace” is one secret of usefulness to others. Our influence on others for good depends greatly on what they see in us. The children of the world measure Christianity quite as much by their eyes as by their ears. The Christian who is always at a standstill, to all appearances the same man, with the same little faults, and weaknesses, and besetting sins, and petty infirmities, is seldom the Christian who does much good.