Charles Ellicott Commentary 1 Chronicles 7:22-23

"And Ephraim their father mourned many days, and his brethren came to comfort him. And he went in to his wife, and she conceived, and bare a son, and he called his name Beriah, because it went evil with his house." — 1 Chronicles 7:22-23 (ASV)

This is either what we would call a metaphorical description of the weakening of the tribe of Ephraim by the disaster that had struck two of its principal families, and of its subsequent recovery due to the natural increase of its numbers and the formation of a new and populous clan, that of Beriah; or, if this is considered too bold an interpretation of the ancient record, we are left to suppose that the whole account relates to an expedition from Goshen, under two sons of Ephraim, during the lifetime of that patriarch, who, after the death of Ezer and Elead, fathered another son, Beriah.