The Arabic terms islah (reform) and sulh (peace) are from the same root. Islah means one’s reach of peace and serenity while leaving conflicts and deviations; in other words, it refers to leaving confusion by settling a dispute between two people or two sides.
Good deeds are actions that are beneficial for people and society, as well as actions that are taken to establish peace and serenity. This concept not only includes offering worship and spending in a good cause.Also includes smiling, behaving warmly to others, establishing friendships, pleasing people by kind words, exchanging greetings, having warm conversation, and controlling bad feelings such as pride, arrogance, anger, envy, animosity, hypocrisy, rancor, and burning ambition. Thus, essentially, virtuous deeds are acts that purify humankind of aggression and bring them to peace.
In the Qur’an, it is recommended to cease disagreements by peace and not to commence further disputes, fights, confusion, and discord. In addition, people are asked to take a balanced approach and seek justice (Qur’an, 8:1; 49:9–10). It is forbidden to spoil peace and tranquility by corruption; there are penalties for those who do it. It is possible to apply the verse, Peace is better (Qur’an, 4:128) which was specifically revealed to eradicate disagreements between couples, to all kinds of human relations. Islam recommends a united and mutually helpful society, and this vision does not only refer to the level of nation, but includes international relations, too.