Charles Ellicott Commentary 2 Kings 25:29

"and changed his prison garments. And [Jehoiachin] did eat bread before him continually all the days of his life:" — 2 Kings 25:29 (ASV)

And changed. — Rather, and he (i.e., Jehoiachin) changed his prison garments—that is to say, he discarded them for others more suitable to his new condition. Joseph did the same when taken from prison to the Egyptian court (Genesis 41:14).

He did eat bread continually before him ... — Jehoiachin became a perpetual guest at the royal table (Compare to 2 Samuel 9:10–13).