The household of God, which is the church of the living God, [is] the pillar and support of the truth. (1Tim 3:15)
The Church is the mechanism by which God communicate and upheld His truth.
The truth come from God. God is truth. The Spirit is truth. The Spirit of truth. The Word is truth. The Word is the logos of God. The truth became flesh. The Word is God.
For we can do nothing against the truth, but only for the truth. (2Cor 13:8)
We as individuals make up the body of Christ who is the church of God. We can do nothing against the truth, ONLY for the truth. We live for the truth. We confess the truth. We die for the truth. The truth is the Word who is God and became flesh. “They Word is truth”.