What does Jeremiah 12:2 mean?

You plant them, and they take root. They grow and even bear fruit. On the outside, they talk about you, but deep down, you’re nowhere in their lives. Jeremiah 12:2 - Modern Text Bible

(Jeremiah is talking to God about people who seem to thrive outwardly, but their hearts are far from God. They look religious, but it’s just for show.)