NET
24 In those days Hezekiah was stricken with a terminal illness. He prayed to the Lord, who answered him and gave him a sign confirming that he would be healed.
Darby
24 In those days Hezekiah was sick unto death, and he prayed to Jehovah; and he spoke to him and gave him a sign.
KJV
24 In those days Hezekiah was sick to the death, and prayed unto the LORD: and he spake unto him, and he gave him a sign.