Isaiah 39:7 - Coke's Commentary on the Holy Bible

Isaiah 39:7. They shall be eunuchs, &c. The Hebrew word סריסים sarisim, rendered eunuchs, signifies great officers employed about the person of the sovereign; and, as eunuchs were generally invested with these offices, the word eunuch, and a great officer, became frequently synonymous terms in the East, though they convey perfectly different ideas in our language. See Parkhurst on the word סדס and Daniel 1:3; Daniel 1:21.