This may seem a little "off topic", but I hope not...

Faith is a lot more than just believing there is a God. In fact, John says anyone who would deny God and Christ is simply a liar. Faith is more about acknowledging everything God has already done for you, being grateful for all that God provides for you now, and expecting God to keep His promises forever. Faith is a gift of Spirit, and even though we do constant battle with necessary evil in this life, all things culminate for the greater glory of God which will sustain us for eternity. I see it this way... The life we live now is the price we pay for the knowledge of both good and evil. We sin out of vain self serving arrogance and must be made to understand that we are not gods.