Tongues are mentioned in the Quran in these verses:
[3:78] Among them are those who twist their tongues to imitate the scripture, that you may think it is from the scripture, when it is not from the scripture, and they claim that it is from God, when it is not from God. Thus, they utter lies and attribute them to God, knowingly.
[4:46] Among those who are Jewish, some distort the words beyond the truth, and they say, “We hear, but we disobey,” and “Your words are falling on deaf ears,” and “Raa’ena (be our shepherd),” as they twist their tongues to mock the religion. Had they said, “We hear, and we obey,” and “We hear you,” and “Unzurna (watch over us),” it would have been better for them, and more righteous. Instead, they have incurred condemnation from God due to their disbelief. Consequently, the majority of them cannot believe.
[5:78] Condemned are those who disbelieved among the Children of Israel, by the tongue of David and Jesus, the son of Mary. This is because they disobeyed and transgressed.
[14:4] We did not send any messenger except (to preach) in the tongue of his people, in order to clarify things for them. God then sends astray whomever He wills, and guides whomever He wills. He is the Almighty, the Most Wise.
[16:62] They ascribe to God what they dislike for themselves, then utter the lie with their own tongues that they are righteous! Without any doubt, they have incurred Hell, for they have rebelled.
[16:103] We are fully aware that they say, “A human being is teaching him!” The tongue of the source they hint at is non-Arabic, and this is a perfect Arabic tongue.
[16:116] You shall not utter lies with your own tongues stating: “This is lawful, and this is unlawful,” to fabricate lies and attribute them to God. Surely, those who fabricate lies and attribute them to God will never succeed.
[19:97] We thus made this (Quran) elucidated in your tongue, in order to deliver good news to the righteous, and to warn with it the opponents.
[20:25] He said, “My Lord, cool my temper.
[20:26] “And make this matter easy for me.
[20:27] “And untie a knot from my tongue.
[20:28] “So they can understand my speech.
[20:29] “And appoint an assistant for me from my family.
[20:30] “My brother Aaron.
[20:31] “Strengthen me with him.
[20:32] “Let him be my partner in this matter.
[20:33] “That we may glorify You frequently.
[20:34] “And commemorate You frequently.
[20:35] “You are Seer of us.”
[24:15] You fabricated it with your own tongues, and the rest of you repeated it with your mouths without proof. You thought it was simple, when it was, according to God, gross.
[24:24] The day will come when their own tongues, hands, and feet will bear witness to everything they had done.
[26:13] “I may lose my temper. My tongue gets tied; send for my brother Aaron.
[26:193] The Honest Spirit (Gabriel) came down with it.
[26:194] To reveal it into your heart, that you may be one of the warners.
[26:195] In a perfect Arabic tongue.
[33:19] Also, they are too stingy when dealing with you. If anything threatens the community, you see their eyes rolling with fear, as if death had already come to them. Once the crisis is over, they whip you with sharp tongues. They are too stingy with their wealth. These are not believers, and, consequently, God has nullified their works. This is easy for God to do.
[48:11] The sedentary Arabs who stay behind will say, “We have been preoccupied with our money and our families, so ask forgiveness for us!” They utter with their tongues what is not in their hearts. Say, “Who can protect you from God, if He willed any adversity for you, or if He willed any blessing for you?” God is fully Cognizant of everything you do.
[60:2] Whenever they encounter you, they treat you as enemies, and hurt you with their hands and tongues. They want you to disbelieve.
[75:16] Do not move your tongue to hasten it.
[75:17] It is we who will collect it into Quran.
[75:18] Once we recite it, you shall follow such a Quran.
[75:19] Then it is we who will explain it.
[90:6] He boasts, “I spent so much money!”
[90:7] Does he think that no one sees him?
[90:8] Did we not give him two eyes?
[90:9] A tongue and two lips?
[90:10] Did we not show him the two paths?
[90:11] He should choose the difficult path.
To learn more, read the Quran in English.
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