A primary qualification for serving God with any amount of success, and for doing God’s work well and triumphantly, is a sense of our own weakness. When God’s warrior marches forth to battle, strong in his own might, when he boasts, “I know that I shall conquer, my own right arm and my conquering sword shall get unto me the victory,” defeat is not far distant. God will not go forth with that man who marches in his own strength. He who reckoneth on victory thus has reckoned wrongly, for “it is not by might, nor by power, but by my Spirit, saith the Lord of hosts.”