Muslims often argue that the Bible does not support the concept of the Trinity or the Deity of Christ, citing instances where God appears in a form that suggests He is not one with Christ.

In the Old Testament, there are several instances where God appears to individuals, such as in the story of Abraham and the three visitors. This does not contradict the Christian understanding of the Trinity but rather complements it by showing God's relational nature. The New Testament reveals that Jesus is the Word made flesh (John 1:14), affirming His divine nature. Furthermore, the concept of the Trinity is not about three gods but one God in three persons, which is a mystery that transcends human understanding. The unity of God is maintained while also recognizing the distinct roles of the Father, Son, and Holy Spirit in the economy of salvation. Thus, the appearances of God in the Old Testament should be viewed through the lens of the full revelation of God in Christ, who is both fully divine and fully human, fulfilling the promises made in the Old Testament.