The paper is a response to the question of what, in the light of religious thinking and constitutional law, the common good is. Why the principle of the common good-one of the basic constitutional principles of government-is so rarely invoked in the case law and what exactly is its content. Prevailing case law of the Constitutional Court opposes this value against the individual good, justifying restrictions on the freedom and rights of individuals in comparison with the interest of the state. However, the concept of the common good in the Polish Constitution is much wider, it determines the adoption of a political model based on the menial role of the state towards its citizens. The Republic of Poland is one of the many components of the common good and the State is obliged to its realization in the spirit of the democratic rule of law.