Many Christians have a hard time living holy lives because they think God will be mad if they don’t. What we need to remember is that God doesn't expect us to live holy because we fear him, fear what he'll do to us if we don't, or fear what others will say about us. He wants us to live holy because we love him and want to be near him.
In Matthew 6:1-18, Jesus continues his sermon on the mount and tells teaches us how our inside and outside need to match in our pursuit of Him.