Whom the men of Gath - slew - We know nothing of this circumstance but what is related here. The Targum paraphrases the whole thus: "These were the leaders of the house of Ephraim; and they computed their period [or boundary, כיצא kitsa ] from the time in which the Word of the Lord of the universe spake with Abraham between the divisions, [i.e., the separated parts of the covenant sacrifice; see Genesis 15:9-21;], but they erred, for they should have counted from the time in which Isaac was born; they went out of Egypt therefore thirty years before the period: for, thirty years before the birth of Isaac the Word of the Lord of the universe spake with Abraham between the divisions. And when they went out of Egypt, there were with them two hundred thousand warriors of the tribe of Ephraim, whom the men of Gath, the natives of the land of the Philistines, slew, because they came down that they might carry away their cattle. 22. - And Ephraim their father mourned for them many days, and all his brethren came to comfort him. 23. - And he went in to his wife, and she conceived and bare a son, and called his name Beriah, (בריעה in evil), because he was born in the time in which this evil happened to his house.