The part of faith other people actually feel
Character is what the Qur'an praises most plainly in the Prophet. Before the arguments and before the law, God tells Muhammad "and you stand upon a magnificent character." That is the whole line, a verse about how a man treated people, set where you would expect a verse about doctrine.
Arabic calls this khuluq: the shape a person has settled into, what comes out when there is no time to decide. The Qur'an keeps returning to it in small, concrete instructions. How you answer a greeting. How loudly you talk. What you do when someone picks a fight with you.
Several of these verses set the bar slightly above whatever was done to you. A greeting is to be returned better, or at least matched. Speech to others is to be the kindest available. Disagreement across faiths is to be conducted "in the best way". The instruction is comparative every time, which is what makes it usable: whatever came at you sets the floor, and you go one step above it.
The longest verse here keeps righteousness from staying abstract. Asked what birr amounts to, the answer runs through belief and then straight into behaviour, into money given away while you still want it, prayer kept, promises kept, steadiness held under real pressure. Character in that verse is audited by what a person does with their wealth, their word and their fear.
Two of the smallest instructions are the ones people remember. Walk at a measured pace. Lower your voice. Luqman gives them to his son alongside advice about God and patience, as though volume and gait belong in the same conversation as belief. It is a modest place for scripture to land, and it is also the part of a person that everyone around them meets first.
Read alongside these, the verses on kindness and honesty cover the two halves this page keeps circling back to: how you treat people, and whether you can be believed.