And remember We took your covenant and We raised above you (The towering height) of Mount (Sinai) : (Saying): "Hold firmly to what We have given you and bring (ever) to remembrance what is therein: Perchance ye may fear Allah." (YUSUFALI)
In this verse Muhammad describe How God did the covenant with Israel:
The Israelis were rebellious so God raised the mountain above them,to scare them and to convince them to accept the covenant.
Strange,There is no such story in Bible:
And when they were departed from Rephidim, and were come to the wilderness of Sinai, they encamped in the wilderness; and there Israel encamped before the mount. And Moses went up unto God, and the LORD called unto him out of the mountain...And all the people answered together, and said: 'All that the LORD hath spoken we will do.' And Moses reported the words of the people unto the LORD...And Moses brought forth the people out of the camp to meet God; and they stood at the nether part of the mount. Now mount Sinai was altogether on smoke, because the LORD descended upon it in fire; and the smoke thereof ascended as the smoke of a furnace, and the whole mount quaked greatly. . . (Exodus 19:2-18)
But there's such story in Talmud:
And they stood under the mount: R. Abdimi b. Hama b. Hasa said: This teaches that the Holy One, blessed be He, overturned the mountain upon them like an [inverted] cask, and said to them,'If ye accept the Torah, 'tis well; if not, there shall be your burial.' (Babylonian Talmud Shabbath 88a http://www.come-and-hear.com/shabbath/shabbath_88.html#88a_16 )
The Talmud was written way before Quran,so i wonder did God started to teach his prophet the Talmud?