Jeremiah 50:5

The Israelites would seek direction to return to Zion. They would go back there to make an everlasting covenant with Yahweh, one that they would not forget, as they had their former (Mosaic) covenant. This is a reference to the New Covenant (Jeremiah 31:31-33; Jeremiah 32:40). Israel has not yet experienced the changes that the New Covenant promised (e.g., Jeremiah 32:40). She did not enter into this covenant with God after Babylon fell to the Persians.