Then Jesus cried out and said, “He who believes in Me, believes not in Me but in Him who sent Me. 45 And he who sees Me sees Him who sent Me. 46 I have come as a light into the world, that whoever believes in Me should not abide in darkness. 47 And if anyone hears My words and does not believe, I do not judge him; for I did not come to judge the world but to save the world. 48 He who rejects Me, and does not receive My words, has that which judges him–the word that I have spoken will judge him in the last day. 49 For I have not spoken on My own authority; but the Father who sent Me gave Me a command, what I should say and what I should speak. 50 And I know that His command is everlasting life. Therefore, whatever I speak, just as the Father has told Me, so I speak.” — John 12:44-50.
believes in me . . . Him who sent me (v.44). — The close relationship of Jesus with the Father (cf. 17:21–23) is stressed in three respects: to believe in Christ is to believe in the Father; to see Christ is to see the Father (v. 45); to hear Christ is to hear the Father (v. 50). On the other hand, rejection of Christ and His words is also a rejection of the Father and His words. This rejection results in judgment, although the primary purpose of Christ’s incarnation was the salvation of His own and not the condemnation of those who do not believe.