These grey stones preached at once the duty of remembering, and the danger of forgetting, the past mercies of God. When they were reared, they would seem needless; but the deepest impressions get filled up by degrees, as the river of time deposits its sands on them. We do not forget pain so quickly as joy, and most men have a longer and keener remembrance of their injurers than of their benefactors, human or divine. The stones were set up because Israel remembered, but also lest Israel should forget. We often think of the Jews as monsters of ingratitude; but we should more truly learn the lesson of their history, if we regarded them as fair, average men, and asked ourselves whether our recollection of God's goodness to us is much more vivid than theirs. Unless we make distinct and frequent efforts to recall, we shall certainly forget 'all His benefits.' The cultivation of thankful remembrance is a very large part of practical religion; and it is not by accident that the Psalmist puts it in the middle, between hope and obedience, when he says 'that they might set their hope in God, and not forget the works of God, but keep His commandments' (Psalm lxxviii.7). The memorial stones further proclaimed the duty of parental instruction in God's mercies. They speak of a time when tradition was the vehicle of history; when books were rare, and monuments were relied upon to awaken curiosity which a father's words would satisfy. Notwithstanding all differences in means of obtaining knowledge, the old law remains in full force, that the parent is the natural and most powerful instructor in the ways of God. The Jewish father was not to send his child to some Levite or other to get his question answered, but was to answer it himself. I am afraid that a good many English parents, who call themselves Christians, are too apt to say, 'Ask your Sunday-school teacher,' when such questions are put to them. The decay of parental religious teaching is working enormous mischief in Christian households; and the happiest results would follow if Joshua's homely advice were attended to, '_Ye_ shall let your children know.' The same principle which led to the erection of this simple monument reaches its highest and sacredest instance in the institution of the Lord's Supper, in which Jesus, with wonderful lowliness, condescends to avail Himself of material symbols in order to secure a firmer place in treacherous memories. He might well have expected that such stupendous love could never be forgotten; but He 'knoweth our frame,' and trusts some share in keeping His death vividly in the hearts of His people to the humble ministry of bread and wine, Strange that we should need to be reminded of the death which it is life to remember! Blessed that, needing it, we have the need so tenderly met, and that He does not disdain to accept loving memories which slumber till stirred by such poor reminders of His unspeakable love! THE CAPTAIN OF THE LORD'S HOST