The word(s) "tongue" appears 19 time(s) in 19 verse(s) in Quran in Saheeh International translation.

(1) And indeed, there is among them a party who alter the Scripture with their tongues so you may think it is from the Scripture, but it is not from the Scripture. And they say, "This is from Allah," but it is not from Allah. And they speak untruth about Allah while they know.

(2) Among the Jews are those who distort words from their [proper] usages and say, "We hear and disobey" and "Hear but be not heard" and "Ra'ina," twisting their tongues and defaming the religion. And if they had said [instead], "We hear and obey" and "Wait for us [to understand]," it would have been better for them and more suitable. But Allah has cursed them for their disbelief, so they believe not, except for a few.

(3) Cursed were those who disbelieved among the Children of Israel by the tongue of David and of Jesus, the son of Mary. That was because they disobeyed and [habitually] transgressed.

(4) And they attribute to Allah that which they dislike, and their tongues assert the lie that they will have the best [from Him]. Assuredly, they will have the Fire, and they will be [therein] neglected.

(5) And We certainly know that they say, "It is only a human being who teaches the Prophet." The tongue of the one they refer to is foreign, and this Qur'an is [in] a clear Arabic language.

(6) And do not say about what your tongues assert of untruth, "This is lawful and this is unlawful," to invent falsehood about Allah. Indeed, those who invent falsehood about Allah will not succeed.

(7) And untie the knot from my tongue

(8) When you received it with your tongues and said with your mouths that of which you had no knowledge and thought it was insignificant while it was, in the sight of Allah, tremendous.

(9) On a Day when their tongues, their hands and their feet will bear witness against them as to what they used to do.

(10) And that my breast will tighten and my tongue will not be fluent, so send for Aaron.