Jn 8, 12-20 I am the light of the world

(Jn 8, 12-20) I am the light of the world

[12] Jesus spoke to them again, saying, "I am the light of the world. Whoever follows me will not walk in darkness, but will have the light of life." [13] So the Pharisees said to him, "You testify on your own behalf, so your testimony cannot be verified." [14] Jesus answered and said to them, "Even if I do testify on my own behalf, my testimony can be verified, because I know where I came from and where I am going. But you do not know where I come from or where I am going. [15] You judge by appearances, but I do not judge anyone. [16] And even if I should judge, my judgment is valid, because I am not alone, but it is I and the Father who sent me. [17] Even in your law it is written that the testimony of two men can be verified. [18] I testify on my behalf and so does the Father who sent me." [19] So they said to him, "Where is your father?" Jesus answered, "You know neither me nor my Father. If you knew me, you would know my Father also." [20] He spoke these words while teaching in the treasury in the temple area. But no one arrested him, because his hour had not yet come.

(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).