How is Jesus not lying in John 7?

In John 7, Jesus tells his brothers that he is not going up to the festival. Then he goes up in secret. This sounds to me like a lie. > **John 7:6-10 (NIV)** > > **6** Therefore Jesus told them, “My time is not yet here; for you any time will do. **7** The world cannot hate you, but it hates me because I testify that its works are evil. **8** You go to the festival. I am not[b] going up to this festival, because my time has not yet fully come.” **9** After he had said this, he stayed in Galilee. > > **10** However, after his brothers had left for the festival, he went also, not publicly, but in secret. >

> [b] Some manuscripts not yet Most Christians believe in Jesus' sinlessness, while believing that lying is a sin. Given those beliefs, how do such Christians explain his words in John 7?