The Quran is his book of choice right?
Taqqaia (lying) in the Quran
Qur’an (16:106) - Establishes that there are circumstances that can “compel” a Muslim to tell a lie.
Qur’an (3:28) - This verse tells Muslims not to take those outside the faith as friends, unless it is to “guard themselves.”
Qur’an (2:225) - “Allah will not call you to account for thoughtlessness in your oaths, but for the intention in your hearts”
Qur’an (66:2) - “Allah has already ordained for you, (O men), the dissolution of your oaths”
Qur’an (3:54) - “And they (the disbelievers) schemed, and Allah schemed (against them): and Allah is the best of schemers.” The Arabic word used here for scheme (or plot) is makara, which literally means deceit. If Allah is deceitful toward unbelievers, then there is little basis for denying that Muslims are allowed to do the same.
“By Allah, and Allah willing, if I take an oath and later find something else better than that. Then I do what is better and expiate my oath.' " [Sahih Bukhari, Volume 7, Book 67, Number 427:]
Let a word to the wise. I don't think it's being an idiot to understand what their faith teaches them.
“I don’t think it’s being an idiot to understand what their faith teaches them. “
Being an idiot is someone who thinks that everyone of a certain faith/race/ethnicity is the same.