Faith - confidence or trust in a person.
So the first point is that we have to have faith that God exists. Now some people like to go off on a tangent and start berating Christians with ridiculous assaults, such as "What about the Spaghetti Monster?" These types of assaults are just that.... assaults, with no merit whatsoever. However, to add credence to what the Christian believes versus all the other religions of the world, we have Jesus, who was God in the flesh. We are not talking about a mystical being somewhere out there that only a certain few have the power to connect with. We are talking a living, breathing God who came in the form of Jesus Christ in the flesh to take all our sins away, not with a word of forgiveness, but with His very own blood sacrifice. Jesus walked and talked with humanity in human form. He was born, and lived a life of about 33 years on earth. Jesus said He would return to earth to take the believers home with Him.
The Christian's faith is in the very person of Jesus Christ and His words that He will return. We have put our faith and trust in Him, and in Him alone.
The second point is that we are not talking about a blind faith, which is one with no evidence whatsoever. We are talking about a childlike faith, which is one that sees a little bit and trusts Jesus with the rest of His promise. This is the exact same faith a child has with a parent. The child believes in the parent, that the parent plans to bless the child. The child trusts the parent to make decisions and to give direction, and the child obeys. Obedience shows love. Because God is love, our obedience shows God how much we love Him. We are not saved because of our good works; we are saved to do good works.
Trust in Jesus today! He is your only hope!