۞ And We appointed for Musa (Moses) thirty nights and added (to the period) ten (more), and he completed the term, appointed by his Lord, of forty nights. And Musa (Moses) said to his brother Harun (Aaron): "Replace me among my people, act in the Right Way (by ordering the people to obey Allah and to worship Him Alone) and follow not the way of the Mufsidun (mischief-makers)." 142 When Moses arrived at the appointed time and his Lord spoke to him, he said: "O Lord, reveal Yourself to me that I may behold You." "You cannot behold Me," He said. "But look at the mountain: If it remains firm in its place you may then behold Me." But when his Lord appeared on the mountain in His effulgence, it crumbled to a heap of dust, and Moses fell unconscious. When he came to, he said: "All glory to You. I turn to You in repentance, and I am the first to believe." 143 Said Allah, “O Moosa! I have chosen you from mankind by (bestowing) My messages and by My speech; so accept what I have bestowed upon you and be among the thankful.” 144 And We ordained for him in the tablets admonition of every kind and clear explanation of all things; so take hold of them with firmness and enjoin your people to take hold of what is best thereof; I will show you the abode of the transgressors. 145 I shall turn from My signs those who wax proud in the earth unjustly; though they see every sign, they will not believe in it, and though they see the way of rectitude they will not take it for a way, and though they see the way of error, they will take it for a way. That, because they have cried lies to Our signs and heeded them not.' 146 Hence, all who give the lie to Our messages, and [thus] to the truth of the life to come - in vain shall be all their doings: [for] are they to be rewarded for aught but what they were wont to do? 147