Peace. It really hit culture in the 1960s. "Can't we all just get along." Peace is something we still aim for. In the context of God, what does peace mean?
Holiness. Holy. What do these words even mean? We don't use them much. God's holiness means that He is separated from sin and devoted to seeking His own honor. Honor is a hard thing to grasp in western culture.
Mercy. Grace. Patience. What do these mean when we talk about them as attributes of God?
Have you heard that God is love? What about when it's spun around to Love is God? Only one of those is right.