God’s message to Israel in the book of Ezekiel isn’t just judgment and wrath. Ezekiel also carries a vision of restoration for the temple and Israel, and that restoration encompasses Sabbath.
Like Jeremiah, the prophet Ezekiel is a man with a message from the Lord. God’s judgment on the Jewish people is a primary theme in his prophecy; in one of the most bizarre pieces of performance art inside or outside the Bible, he lays siege to a model of Jerusalem and bakes bread over a fire fueled by human feces (Ezekiel 4:1-17). And as Ezekiel relates, one of the many things for which God is judging his people is neglecting the Sabbath.
In this passage, Jesus compares the gospel to a mustard seed that grows into a tree, and leaven that makes bread rise. Nothing fancy here, just the simple message that the kingdom grows. It starts small, but give it enough time, and it’ll become a tree big enough for birds to nest in. The kingdom of God plays the long game.