tumultuous...: Heb. children of noise

Geneva Study Bible

They that fled stood under the shadow {z} of Heshbon because of the force: but {a} a fire shall come out of Heshbon, and a flame from the midst of Sihon, and shall devour the corner of Moab, and the crown of the head of the tumultuous ones.

(z) They fled there thinking to have comfort from the Amorites.

(a) The Amorites had destroyed the Moabites in times past, and now because of their power the Moabites will seek them for help.Jeremiah 48:45 Parallel Commentaries

Meditations for the Sick.
Whilst thy sickness remains, use often, for thy comfort, these few meditations, taken from the ends wherefore God sendeth afflictions to his children. Those are ten. 1. That by afflictions God may not only correct our sins past, but also work in us a deeper loathing of our natural corruptions, and so prevent us from falling into many other sins, which otherwise we would commit; like a good father, who suffers his tender babe to scorch his finger in a candle, that he may the rather learn to beware …
Lewis Bayly—The Practice of Piety

The Section Chap. I. -iii.
The question which here above all engages our attention, and requires to be answered, is this: Whether that which is reported in these chapters did, or did not, actually and outwardly take place. The history of the inquiries connected with this question is found most fully in Marckius's "Diatribe de uxore fornicationum," Leyden, 1696, reprinted in the Commentary on the Minor Prophets by the same author. The various views may be divided into three classes. 1. It is maintained by very many interpreters, …
Ernst Wilhelm Hengstenberg—Christology of the Old Testament