What the Koran commands and forbids you to do

Don't lie (Q22:30)

Don't spy (Q49:12)

Don't insult (Q49:11)

Don't waste (Q17:26)

Feed the poor (Q22:36)

Don't backbite (Q49:12)

Keep your oaths (Q5:89)

Don't take bribes (Q27:36)

Honour your treaties (Q9:4)

Restrain your anger (Q3:134)

Don't spread gossip (Q24:15)

Think good of others (Q24:12)

Be good to guests (Q51:24-27)

Don't harm believers (Q33:58)

Don't be rude to parents (Q17:23)

Turn away from ill speech (Q23:3)

Don't make fun of others (Q49:11)

Walk in a humble manner (Q25:63)

Respond to evil with good (Q41:34)

Don't say what you won't do (Q62:2)

Keep your trusts & promises (Q23:8)

Don't insult others' false gods (Q6:108)

Don't deceive people in trade (Q6:152)

Don't take items without right (Q3:162)

Don't ask unnecessary questions (Q5:101)

Don't be miserly nor extravagant (Q25:67)

Don't call others with bad names (Q49:11)

Don't claim yourselves to be pure (Q53:32)

Speak nicely, even to the ignorant (Q25:63)

Don't ask for repayment for favours (Q76:9)

Make room for others at gatherings (Q58:11)

If enemy wants peace, then accept it (Q8:61)

Return a greeting in a better manner (Q4:86)

Don't remind others of the favours you done to them(Q2:264)

Make peace between fighting groups (Q49:9)