'Chains' in the Bible

The word that came to Jeremiah from Yahweh after Nebuzaradan, [the] captain of [the] guard, had let him go from Ramah, {where he had been taken} bound in chains in the midst of all the exiles of Jerusalem and Judah who were being deported [to] Babylon.

And so then look, I have released you {today} from the chains that [were] on your hands. If it is good in your eyes to come with me [to] Babylon, [then] come, and {I will take care of you}. But if it is bad in your eyes to come with me [to] Babylon, [then] refrain. Look, the whole land [is] {before you}. To [wherever it is] good and right in your eyes to go, [then] go there."