Mankind came at this earth with their needs. The basic needs of mankind are food for eating, water for drinking, and for the protection of selves; they need wearing clothes and shelter to safeguard themselves from rain, hot and cold. The responsibility of living is dependent on these essential requirements. Islam teaches mankind to earn lawful food. Many verses and hadiths are related to earning lawful food. Islam is a peaceful religion. Therefore, to earn lawful (Halal) food is appreciated. This is a fact that the economic stability has positive effects on human beings' faith, believe, ethics, character, thinking, thoughts, personality and the system of a family. Whereas the financial instability puts negative effects on people's faith, believe ethics, character, thinking, thoughts, personality and the system of a family. That is why Islam advises mankind for earning lawful (Halal) foodstuff. All those sources are considered unlawful (Haraam) to earn money, which directly affects society or people’s wealth, life, and faith. The lawful (Halah) money (food) motivates the people towards good works and unlawful (Haraam) simulates the mankind to do sinful deeds. Food affects the body, like same the unlawful (Haraam) money (food) affects the soul. Lawful foodstuff produces a spiritual power in people for doing good and righteous and to inculcate give values, respect and importance to every relationship and to the society at large. The aim of this draft to elucidate the importance of lawful money (foodstuff) and its role in the stability of the family system.