My parents lied about my dad having a child and another marriage

First of all you know the Bible says you have to honor your mother and your father. For what ever reason they lied, hid this, other what ever reason, they obviously are ashamed. I am sure they are not trying to hurt you because you are their child and they love you. You have enough to contend with in this world besides feeling ill treatments toward your parents over something like this. I am sure all of us have lied about something and hid something from someone we love. Please don't let something like this ruin your relationship with your parents. The end of the day you need their love and they need yours. They are your parents and that is their choice. Sorry it's hurts you but focus on some other problem that you have the power to control and you will be happier.