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9“Only be careful for yourself and watch over your soul diligently, so that you do not forget the things which your eyes have seen and they do not depart from your heart all the days of your life; but make them known to your sons and your grandsons. 10Remember the day you stood before the Lord your God at Horeb, when the Lord said to me, ‘Assemble the people to Me, that I may have them hear My words so that they may learn to fear Me all the days that they live on the earth, and that they may teach their children.’ 11You came forward and stood at the foot of the mountain, and the mountain was burning with fire to the heart of the heavens: darkness, cloud, and thick gloom.