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Home/Biblical and Theological/Trinitarian Belief Across The Testaments

Trinitarian Belief Across The Testaments

The doctrine of the Trinity, finally "hammered-out" in the post-apostolic New Covenant era was not "new" at all.

Written by Rev. Mark J. Henninger | Thursday, December 4, 2025

We should not be surprised that the people (church) of God have always known and believed in the doctrine of the Trinity, (be they in the Old Covenant or the New). It has been in existence from before the creation of the world—and its “light” has dawned on us through the One through whom the world was created, Christ, the Second Person of the Holy Trinity.

 

I believe that all the regenerated saints—in both the Old Covenant and in the New—are endued by the Holy Spirit with at least an inchoate knowledge of the truth of the Holy Trinity; and that, to the level of the gospel light they are able to receive and understand, they wholeheartedly believe in the existence of the Holy Trinity.

Along with regenerated sinners, who are all redeemed by Jesus Christ and His blood atonement, elect angels also know the truth of the Holy Trinity. For them, this is not a difficulty—in that they are ministers (to the church) of these Three Persons, the Father, the Son, and the Holy Spirit.

Adam and Eve, also, before their Fall into sin, clearly comprehended that God was Trinity; and their subsequent redemption was understood to require “The Seed of the woman,” Christ Himself, the Second Person of the Trinity, to “crush Satan’s head,” all as per Gen. 3:15. It is also likely that Adam and Eve passed this Trinitarian knowledge down to their descendants, even via word of mouth.

The New Testament, of course, makes the doctrine of the Trinity manifestly obvious; and it is extremely interesting that none of the NT writers ever bother to expend any energy (or ink) in explaining the doctrine, or defending it. Even the Pharisees themselves—whose theology was not entirely devoid of conceptual truth—did not contest the Messiah’s many allusions to it (the Trinity). When Jesus spoke of the Father, or the Holy Spirit, they did not raise a ruckus.

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Related Posts:

  • We are Trinitarians
  • The Bible in the Trinity
  • Which God Are We Talking About?
  • Without the Trinity the Doctrine of the Atonement…
  • God in Three Persons, not Three Personalities

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