Isaiah 39:7-8 English Standard Version (ESV)

7. And some of your own sons, who will come from you, whom you will father, shall be taken away, and they shall be eunuchs in the palace of the king of Babylon.”

8. Then Hezekiah said to Isaiah, “The word of the Lord that you have spoken is good.” For he thought, “There will be peace and security in my days.”

Isaiah 39