JOSHUA i. 6-9.
God has promised to be with Joshua, but Joshua must strive to act like one in partnership with God. And that He may do so, God has just two things to press on him: in the first place, to be strong and of a good courage; and in the second place, to make the book of the law his continual study and guide. In this way he shall be able to achieve the specific purpose to which he is called, to divide the land for an inheritance to the people, as God hath sworn to their fathers; and likewise, more generally, to fulfil the conditions of a successful life--"then shalt thou make thy way prosperous, and then thou shalt have good success."
First, Joshua must be strong and very courageous. But are strength and courage really within our own power? Is strength not absolutely a Divine gift, and as dependent on God in its ordinary degrees as it was in the case of Samson in its highest degree? No doubt in a sense it is so; and yet the amount even of our bodily strength is not wholly beyond our own control. As bodily strength is undoubtedly weakened by careless living, by excess of eating and drinking, by all irregular habits, by the breathing of foul air, by indolence and self-indulgence of every kind, so undoubtedly it is increased and promoted by attention to the simple laws of health, by activity and exercise, by sleep and sabbatic rest, by the moderate use of wholesome food, as well as by abstinence from hurtful drinks and drugs. And surely the duty of being strong, in so far as such things can give strength, is of far more importance than many think; for if we can thus maintain and increase our strength we shall be able to serve both God and man much better and longer than we could otherwise have done. On the other hand, the feebleness and fitfulness and querulousness often due to preventible illness must increase the trouble which we give to others, and lessen the beneficent activity and the brightening influence of our own lives.
But in Joshua's case is was no doubt strength and courage of soul that was mainly meant. Even that is not wholly independent of the ordinary conditions of the body. On the other hand, there are no doubt memorable cases where the elasticity and power of the spirit have been in the very inverse ratio to the strength of the body. By cheerful views of life and duty, natural depression has been counteracted, and the soul filled with hope and joy. "The joy of the Lord," said Nehemiah, "is the strength of His people." Fellowship with God, as our reconciled God and Father in Christ, is a source of perpetual strength. Who does not know the strengthening and animating influence of the presence even of a friend, when we find his fresh and joyous temperament playing on us in some season of depression? The radiance of his face, the cheeriness of his voice, the elasticity of his movements seem to infuse new hope and courage into the jaded soul. When he is gone, we try to shake off the despondent feeling that has seized us, and gird ourselves anew for the battle of life. And if such an effect can be produced by fellowship with a fellow-creature, how much more by fellowship with the infinite God!--especially when it is His work we are trying to do, and when we have all His promises of help to rest on. "God is near thee, therefore cheer thee" is a perpetual solace and stimulus to the Christian soul.
But even men who are full of Christian courage need props and bulwarks in the hour of trial. Ezra and Nehemiah were bold, but they had ways of stimulating their courage, which they sometimes needed to fall back on, and they could find allies in unlikely quarters. Ezra could draw courage even from his shame, and Nehemiah from his very pride. "I was ashamed," said Ezra, "to require of the king a band of soldiers and horsemen to help us against the enemy in the way;" therefore he determined to face the danger with no help but the unseen help of God. And when Nehemiah's life was in danger from the cunning devices of the enemy, and his friends advised him to hide himself, he repelled the advice with high-minded scorn--"Should such a man as I flee?"