There is another verse about that. It distinguishes between belief and action.
Qur'an 2:177
It is not righteousness
That ye turn your faces toward East or West;
But it is righteousness -
To believe in God
And the Last Day
And the Angels
And the Book
And the Messengers;{this is all belief}
To spend of your substance out of love for Him
For your kin
For orphans
For the needy
For the wayfarer
For those who ask,
And for the ransom of slaves;
To be steadfast in prayer
And practice regular charity;
To fulfil the contracts which ye have made;
And to be firm and patient in pain (or suffering) and adversity
And throughout all periods of panic.{this is all action}
Such are the people of truth the God-conscious.
Another one:
"Verily! Those who believe and those who are Jews and Christians, and Sabians, ... whoever believes in Allāh and the Last Day and those who do righteous good deeds shall have their reward with their Lord, on them shall be no fear, nor shall they grieve ." Quran 2:62
Which is getting preachy now, but there is belief and there is action. And when there is diversity in belief it challenges us to question our ethics and our actions because we are forced to consider more than one way of thinking about any issue
