Character is who we are when we are alone. Often our character can be a false impression when we around others. The traits that form our nature are often displayed behind closed doors. Do we always have the right heart and say things that glorify God? God knows our heart and who we are all the time. We cannot hide anything from Him.
Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.
Matthew 7:17