In this thesis we have explored the biblical foundation of marriage and the family relying on biblical texts in which we find their foundation. Using the method of synthesis and deduction, the aim was to show why the very biblical foundation of these two realities is important for a man called to exist in order to fulfill and realize God's plan. The paper is divided into three chapters through which the biblical account of the importance and significance of marriage and the family will be gradually elaborated. In the first or priestly account of creation highlights the creation of man in the image and likeness of God. The model by which man, male and female, is created is Jesus Christ. Therefore man individually, but also together, in family and marital union, reflects the image of the Logos, Jesus. In the second or Yahwistic account of creation, the notion of ribs and help has theological significance, as does the establishment of a family and marriage marked by the sign of one body. The marriage bond is accordingly marked by the oneness and indissolubility confirmed by Jesus in a conversation with the Pharisees dealt with by the synoptics Matthew and Mark. Since the marriage covenant can be abused, then we are talking about lust that prevents a man from seeing another as a person, but as an object of lust. Also, through the processing of the two Old Testament books, of the Song of Songs and the Book of Tobias, we explains the importance of two kinds of love, namely eros and ethos. The third and the most perfect kind of love (agape) includes the fifth chapter of the Epistle to the Ephesians, in which we come from the explanation of the fall into the first sin and the biblical analysis of the fears (of God), submissiveness, leadership, consecration led to a picture of the marital bond that St. Paul compares to the relationship between Christ and the Church. From the institution of marriage arises the institution of the family as the communion of persons who form the image of the inner love of the Father, the Son and the Holy Spirit. The call to giving and procreation is woven into man, and includes the call to raise children in Christ. The sixth chapter of Ephesians deals with the moral duties of family life, which includes the relationship between children and parents. The fourth commandment of God plays a key role in this, as well as the privileged place of the children they have with Jesus.