In the second half of the first century, Christian authors have stated the role of the Logos "in the beginning." According to them, God did not create the world in a sublime solitude, beside him stood the Logos identified with Jesus Christ. Thus, on the one hand, Christians continued to confess that God is the Creator and the other, they developed a thought on the creative mediation of Christ (1 Cor 8.6, Col 1:15-20, Eph 2.10, Heb 1,1-14, Jn 1:1-18). Established in cosmopolitan cities, they were led to affirm the superiority of Christ over the invisible beings by giving it power over the world that Yahweh alone possessed. The question of a challenge to the monotheism is then asked. One of the answers lies in the description of the relationship between the Father and the Son. This leads to the conclusion that the creation makes sense in the union of the Son, Unique and Beloved, with whom he refers to as Father. The creation extents within this relationship of love and far from leading to a competition between the Father and the Son, it is the work of the Son where he manifests the Father because he is his creative Word.