Both words describe the kingdom of God as demonstrated by Jesus. In life, Jesus consistently portrayed the beauty of God's kingdom, and in doing so, revolted against the world's greed, pride, and oppression.
In recent years, Christians have been seduced by the mindset that 'Jesus opposed.' Attempting to mingle faith with politics, we have proceeded as if Jesus' kingdom were of this world. It hasn't worked. Instead, we have done a bunch of damage to the gospel.
The kingdom isn't primarily about believing different things; it's about living a radically different way.
It's not about conquering the world for Jesus; it's about serving the world like Jesus.
It's not about going to church; it's about being the church.
It's not primarily about confessing Jesus; it's about loving like Jesus.