I am afraid that the practice of such meditation as is meant here has come to be, like the art of making ecclesiastical stained glass, almost extinct in modern times. You have all so many newspapers and magazines to read that the Bible has a chance of being shoved out of sight, except on Sundays and in chapels. The 'meditating' that is enjoined in my text is no mere intellectual study of Scripture, either from an antiquarian or a literary or a theological point of view, but it is the mastering of the principles of conduct as laid down there, and the appropriating of all the power for guidance and for sustaining which that word of the Lord gives. Meditation, the familiarising ourselves with the ethics of Scripture, and with the hopes and powers that are treasured in Jesus Christ, so that our minds are made up upon a great many thorny questions as to what we ought to do, and that when crises or dangers come, as they have a knack of coming, very suddenly, and are sprung upon us unexpectedly, we shall be able, without much difficulty, or much time spent in perplexed searching, to fall back upon the principles that decide our conduct--that is essential to all successful and victorious Christian life. And it is the secret of all blessed Christian life. For there is a lovely echo of these vigorous words of command to Joshua in a very much more peaceful form in the 1st Psalm: 'Blessed is the man that walketh not in the counsel of the ungodly, ... but his delight is in the law of the Lord, and in His law doth he meditate day and night'--the very words that are employed in the text to describe the duty of the soldier--therefore 'all that he doeth shall prosper.' III. That leads to the last thought here--the sure victory of such bold obedience.