Faith is saying “yes” to God’s grace by agreeing with Him that you’re a sinner who cannot do anything to make yourself good enough to be accepted by Him, and then by asking Him to begin a good work in you to increasingly change you into a radically new person that is acceptable to Him. Faith is also saying “no” to our old lives of indifference and rebellion to God by turning away from them to Him. We mean it when we say of our sin: “I did it. I regret doing it. Help me not to do it again. Lead me to something better in you.” When that happens… God doesn’t just give us different lives; He makes us into different people.
