The word(s) "confirm" appears 25 time(s) in 24 verse(s) in Quran in Mohsin Khan translation.

(21) Nay! he (Muhammad صلى الله عليه وسلم) has come with the truth (i.e. Allah's religion - Islamic Monotheism and this Qur'an) and he confirms the Messengers (before him who brought Allah's religion - Islamic Monotheism).

(22) And before this was the Scripture of Musa (Moses) as a guide and a mercy. And this is a confirming Book (the Qur'an) in the Arabic language, to warn those who do wrong, and as glad tidings to the Muhsinun (good-doers. See the footnote of V.9:120).

(23) They said: "O our people! Verily, we have heard a Book (this Qur'an) sent down after Musa (Moses), confirming what came before it: it guides to the truth and to the Straight Path (i.e. Islam).

(24) And (remember) when 'Îsa (Jesus), son of Maryam (Mary), said: "O Children of Israel! I am the Messenger of Allah unto you, confirming the Taurat [(Torah) which came] before me, and giving glad tidings of a Messenger to come after me, whose name shall be Ahmad. But when he (Ahmad i.e. Muhammad صلى الله عليه وسلم) came to them with clear proofs, they said: "This is plain magic."