John 8:12-14

Young's Literal Translation

¹² Again, therefore, Jesus spake to them, saying, `I am the light of the world; he who is following me shall not walk in the darkness, but he shall have the light of the life.'

¹³ The Pharisees, therefore, said to him, `Thou of thyself dost testify, thy testimony is not true;'

¹⁴ Jesus answered and said to them, `And if I testify of myself -- my testimony is true, because I have known whence I came, and whither I go, and ye -- ye have not known whence I come, or whither I go.