John Trapp on Amos 1:13

Verſe 13. I will not turn away the puniſhment thereof] Or I will not turn and reduce him to my ſelf by repentance, that I may ſhew him mercy, as Lam. 5.22. Ier. 31.18. but harden his heart, and haſten his deſtruction.

becauſe they have ript up the women with child] Immane facinus, & vicinis indignum, ſaith Mercer, A cruel fact, and the worſe, becauſe done by ſo neere neighbours, and allyes; thus to kill two at one blow, and thoſe alſo innocent and impotent, and ſuch as they ought to have ſpared by the law of nature, and of nations: and all this, meerely out of covetouſneſſe and ambition.

That they might enlarge their border] but firſt root out the little ones, that elſe might hereafter claime and recover their fathers poſſeſſions. So at the Sicilian veſpers they ript up their own women that were with child by the French: that no French blood might remaine amongſt them. See the Note on Hoſ. 13.16. and learn to deteſt covetouſneſſe, that root of all evill, 1 Tim. 6.10. Better converſe with a Canibal, then with a truly covetous caytiffe: and more curteſie you may expect.