I understand Islam, as I practised Islam in former years.
I don't believe for a second that the Qur'an confirms the crucifixion.
In fact, the Qur'an emphatically denies the crucifixion.
And that is one of the reasons why I believe that the Qur'an is false.
The Qur'an want's us to believe that God would deceive the world...
And leave the world in a state of deception for 600 years...
Only to expect us to believe in him when he decides to reveal the truth of his deception.
To believe the Qur'an is to believe that God deceives his people.
How then can we trust such a god?
The only god who we know to have deceived us is Satan.
And Satan is a false god.