As what follows is mainly a historical narrative, it seems that the title “The word ...” was appropriate not merely to a prediction of the future, but to an account of the past, if written by a prophet. The Jews regarded history as inspired if written by a seer, and thus their historical books are called “the early prophets.”
Ramah - Probably all the prisoners of note were collected at Ramah indiscriminately, and examined there.
Bound in chains - The prisoners were probably fastened together in couples by one hand, and a rope passed down the center to bind them in a long line, and prevent attempts at escape.