When the king had arranged these matters, he remembered that sentence of divine scripture, "Whosoever will give alms, ought to begin from himself," and prudently began to reflect what he could offer to God from the service of his body and mind; for he proposed to consecrate to God no less out of this than he had done of things external to himself. Moreover, he promised, as far as his infirmity and his means would allow, to give up to God the half of his services, bodily and mental, by night and by day, voluntarily, and with all his might; but, inasmuch as he could not equally distinguish the lengths of the hours by night, on account of the darkness, and ofttimes of the day, on account of the storms and clouds, he began to consider, by what means and without any difficulty, relying on the mercy of God, he might discharge the promised tenor of his vow until his death. After long reflection on these things, he at length, by a useful and shrewd invention, commanded his chaplains to supply wax in a sufficient quantity, and he caused it to be weighed in such a manner that when there was so much of it in the scales, as would equal the weight of seventy-two pence, (58) he caused the chaplains to make six candles thereof, each of equal length, so that each candle might have twelve divisions (59) marked longitudinally upon it. By this plan, therefore, those six candles burned for twenty-four hours, a night and day, without fail, before the sacred relics of many of God's elect, which always accompanied him wherever he went; but sometimes when they would not continue burning a whole day and night, till the same hour that they were lighted the preceding evening, from the violence of the wind, which blew day and night without intermission through the doors and windows of the churches, the fissures of the divisions, the plankings, or the wall, or the thin canvass of the tents, they then unavoidably burned out and finished their course before the appointed time; the king therefore considered by what means he might shut out the wind, and so by a useful and cunning invention, he ordered a lantern to be beautifully constructed of wood and white ox-horn, which, when skilfully planed till it is thin, is no less transparent than a vessel of glass. This lantern, therefore, was wonderfully made of wood. and horn, as we before said, and by night a candle was put into it, which shone as brightly without as within, and was not extinguished by the wind; for the opening of the lantern was also closed up, according to the king's command, by a door made of horn. By this contrivance, then, six candles, lighted in succession, lasted four and twenty hours, neither more nor less, and, when these were extinguished, others were lighted. When all these things were properly arranged, the king, eager to give up to God the half of his daily service, as he had vowed, and more also, if his ability on the one hand, and his malady on the other, would allow him, showed himself a minute investigator of the truth in all his judgments, and this especially for the sake of the poor, to whose interest, day and night, among other duties of this life, he ever was wonderfully attentive. For in the whole Kingdom the poor, besides him, had few or no protectors; for all the powerful and noble of that country had turned their thoughts rather to secular than to heavenly things: each was more bent on secular matters, to his own profit, than on the public good.