What does Leviticus 27:34 mean?

While the Israelites were still camped out in the Sinai desert, God spoke to Moses inside the tent where they met. It was the first day of the second month, in the second year after they left Egypt. Leviticus 27:34 - Modern Text Bible

(This sets the scene: God is giving Moses instructions right after the Israelites have left Egypt, while they're still figuring out how to live as a new community.)