6:70So leave alone those who take their religion for play and pastime, and whom the worldly life has deceived. But remind with it, lest a soul becomes damned on account of what it has earned. It has no helper or intercessor besides God. Even if it offers every equivalent, none will be accepted from it. These are the ones who are delivered to perdition by their actions. They will have a drink of scalding water, and a painful punishment, because they used to disbelieve.

6:105We thus diversify the revelations, lest they say, “You have studied,” and to clarify them for people who know.

6:108Do not insult those they call upon besides God, lest they insult God out of hostility and ignorance. We made attractive to every community their deeds. Then to their Lord is their return, and He will inform them of what they used to do.

6:153This is My path, straight, so follow it. And do not follow the other paths, lest they divert you from His path. All this He has enjoined upon you, that you may refrain from wrongdoing.

6:156Lest you say, “The Scripture was revealed to two parties before us, and we were unaware of their teachings.”

6:157Or lest you say, “Had the Scripture been revealed to us, we would have been better guided than they.” Clarification has come to you from your Lord, and guidance, and mercy. Who then does greater wrong than he who gives the lie to God's messages, and turns away from them? We will repay those who turn away from Our messages with the worst kind of punishment, because of their turning away.