If the Bible says Jesus Christ is Jehovah why does Watchtower and Jehovah's Witneses ignore this?

Jehovah's witnesses as well as other organizations that call themselves a religion, take the bible out of context and make it something that is it not. I cannot understand how they can miss the truth either- but this is a huge part of it I believe- Satan will do anything to deceive God's creation. If he can make someone believe just apart of the bible, then he has won.