The Christian & Missionary Alliance affirms the classical doctrine of the Trinity as expressed in the C&MA Statement of Faith. God is one in essence yet three in persons, with each person (Father, Son, and Holy Spirit) being fully divine, co-equal, and co-eternal. This Trinitarian understanding is foundational to all C&MA theology and ministry.

The C&MA stands in continuity with the historic creeds, affirming the Nicene formulation of three distinct persons sharing one divine substance without confusion or division. The Trinity is understood as essential to Christian orthodoxy and cannot be compromised. C&MA teaching emphasizes that all three persons are fully worthy of worship and that their distinct roles in redemption (Father as Creator, Son as Redeemer, Spirit as Sanctifier) reflect the one divine will.

This doctrine shapes the C&MA understanding of salvation, the Holy Spirit's role in sanctification, and the fourfold gospel proclaimed throughout the denomination's missionary efforts globally.