Integrity means knowing what you believe and living as though you believe it. No one is a better model of this than Jesus. Though we can never be perfect as he was, we can always grow in integrity. This involves being faithful in every area of your life, no matter how small. In fact, you’ll probably find that it is in the small things that your integrity will be tested the most.
Unless you are faithful in small matters, you won’t be faithful in large ones. If you cheat even a little, you won’t be honest with greater responsibilities. Luke 16:10