Mainstream biblical scholars and historians state that the doctrine of the Trinity is never explicitly laid out as a formal dogma anywhere in the text of the Old or New Testaments. While the New Testament contains early triadic formulas (such as the baptismal command in Matthew 28:19 and apostolic blessings in 2 Corinthians 13:14), the actual systemic theology of a three-in-one God was developed later by early church fathers over centuries. Christian theologians argue that the doctrine is implicitly woven throughout the scriptures, while critics and Islamic scholars point to the lack of clear, direct scriptural definitions to argue it was a later modification of strict biblical monotheism.
Mainstream orthodox Christianity asserts that Jesus is entirely co-equal and co-eternal with the Father and the Holy Spirit as the second Person of the unified Trinity. However, secular textual critics and Islamic theologians highlight multiple passages in the gospels, such as John 14:28 ('the Father is greater than I') and Mark 13:32, to argue that the historical Jesus openly acknowledged a subordinate role relative to the Almighty Creator. They view these texts as evidence that a formal doctrine of absolute equality within a triune Godhead was a later theological development rather than an original apostolic teaching.
| 1. Peter heals a crippled beggar at the Temple gate | Acts 3:1-10 |
| 2. Apostle Paul raises Eutychus from the dead at Troas | Acts 20:7-12 |