Psalms 41:3
The LORD will sustain him on his bed of illness and restore him from his bed of sickness.
General
Psalms 73:26
My flesh and my heart may fail, but God is the strength of my heart and my portion forever.
2 Kings 1:6, 16
They replied, “A man came up to meet us and said, ‘Go back to the king who sent you and tell him that this is what the LORD says: Is it because there is no God in Israel that you are sending these men to inquire of Baal-zebub, the god of Ekron? Therefore you will not get up from the bed on which you are lying. You will surely die.’” ... And Elijah said to King Ahaziah, “This is what the LORD says: Is there really no God in Israel for you to inquire of His word? Is that why you have sent messengers to inquire of Baal-zebub, the god of Ekron? Therefore you will not get up from the bed on which you are lying. You will surely die.”
2 Kings 20:5-6
“Go back and tell Hezekiah the leader of My people that this is what the LORD, the God of your father David, says: ‘I have heard your prayer; I have seen your tears. I will surely heal you. On the third day from now you will go up to the house of the LORD. I will add fifteen years to your life. And I will deliver you and this city from the hand of the king of Assyria. I will defend this city for My sake and for the sake of My servant David.’”
2 Corinthians 4:16-17
Therefore we do not lose heart. Though our outer self is wasting away, yet our inner self is being renewed day by day. For our light and momentary affliction is producing for us an eternal weight of glory that is far beyond comparison.
Philippians 2:26-27
For he has been longing for all of you and is distressed because you heard he was ill. He was sick indeed, nearly unto death. But God had mercy on him, and not only on him but also on me, to spare me sorrow upon sorrow.