What is righteousness? What does it mean to be righteous?

Righteousness, in a Biblical context, is to be right with God at the core of your being. It means that on a scale of 1-10, you’re an 11! No human is righteous through their own efforts (Romans 3:19-20). But through Christ, we have been imputed and imparted the very righteousness of God (2 Corinthians 5:21; Galatians 3:21; Romans 4:25; Romans 6:18).