Rm 3, 1-4 God must be true

Romans 3

(Rm 3, 1-4) God must be true

[1] What advantage is there then in being a Jew? Or what is the value of circumcision? [2] Much, in every respect. (For) in the first place, they were entrusted with the utterances of God. [3] What if some were unfaithful? Will their infidelity nullify the fidelity of God? [4] Of course not! God must be true, though every human being is a liar, as it is written: "That you may be justified in your words, and conquer when you are judged."

(CCC 2465) The Old Testament attests that God is the source of all truth. His Word is truth. His Law is truth. His "faithfulness endures to all generations" (Ps 119:90; Cf. Prov 8:7; 2 Sam 7:28; Ps 119:142; Lk 1:50). Since God is "true," the members of his people are called to live in the truth (Rom 3:4; cf. Ps 119:30). (CCC 2466) In Jesus Christ, the whole of God's truth has been made manifest. "Full of grace and truth," he came as the "light of the world," he is the Truth (Jn 1:14; 8:12; cf. 14:6). "Whoever believes in me may not remain in darkness" (Jn 12:46). The disciple of Jesus continues in his word so as to know "the truth [that] will make you free" and that sanctifies (Jn 8:32; cf. 17:17). To follow Jesus is to live in "the Spirit of truth," whom the Father sends in his name and who leads "into all the truth" (Jn 16:13). To his disciples Jesus teaches the unconditional love of truth: "Let what you say be simply 'Yes or No.'" (Mt 5:37).