In Matthew 13, Jesus tells two parables comparing the Kingdom of God to small things which overtime have a big impact. Jesus' message to his disciples, that we've seen play out over the course of the last 2,000 years is that God's kingdom will continue to expand. It's easy to believe in the West the lie that the church is shrinking, but actually there are new people coming to faith every day.
Jesus also promises that His Kingdom is the place to find rest. And he tells two more parables comparing the Kingdom of God to valuable things. His point, when you realise how God entering the Kingdom of God is then it's worth giving up everything for.
Have you given up everything to live your life devoted the God's kingdom?