Has He started that good work in you? How can you and I know that we have received God’s grace? There are two really good indicators that your faith in Him is genuine: you have a growing hatred for sin and a growing love for Jesus. You don’t just want to be free from the consequences of sin, but sin itself. You don’t just want to have the blessings of God, but God Himself. There is a desire that begins growing inside of you to experience all that God has for you, in this world and the one to come. You believe in Jesus for the first time, and then you believe in Him more fully over time. We grow. That’s how we know.