I will cut off thine arm ... - A strong phrase for breaking down the strength and power, of which the arm is the instrument in man (compare Zechariah 11:17). See 1 Samuel 2:33.
Related Commentaries of 1 Samuel 2:31
1 Samuel 2:31
31 Behold, the days come, that I will cut off thine arm, and the arm of thy father's house, that there shall not be an old man in thine house.