question: why did God send Jesus to the earth?

answer: For us to have a chance at eternal life, when you take Jesus into your heart and ask him to forgive your sins, he will do it.

How do i know this? Jesus tell us in the bible. You don't have to take my word for it..

John 3:16 says:

For God so loved the world that He gave His only begotten Son, That whoever believes in Him should not perish but have everlasting life.