8 Hezekiah said to Isaiah, “What will be the sign that Yahweh will heal me, and that I will go up to Yahweh’s house the third day?”
2 Kings 20:8 Cross References - WEB
Judges 6:17
17 He said to him, “If now I have found favor in your sight, then show me a sign that it is you who talk with me.
Judges 6:37-40
37 behold, I will put a fleece of wool on the threshing floor. If there is dew on the fleece only, and it is dry on all the ground, then I’ll know that you will save Israel by my hand, as you have spoken.”
38 It was so; for he rose up early on the next day, and pressed the fleece together, and wrung the dew out of the fleece, a bowl full of water.
39 Gideon said to God, “Don’t let your anger be kindled against me, and I will speak but this once. Please let me make a trial just this once with the fleece. Let it now be dry only on the fleece, and on all the ground let there be dew.”
40 God did so that night; for it was dry on the fleece only, and there was dew on all the ground.
2 Kings 19:29
29 “This will be the sign to you: This year, you will eat that which grows of itself, and in the second year that which springs from that; and in the third year sow, and reap, and plant vineyards, and eat its fruit.
2 Kings 20:5
5 “Turn back, and tell Hezekiah the prince of my people, ‘Yahweh, the God of David your father, says, “I have heard your prayer. I have seen your tears. Behold, I will heal you. On the third day, you will go up to Yahweh’s house.
Isaiah 7:11
11 “Ask a sign of Yahweh your God; ask it either in the depth, or in the height above.”
Isaiah 7:14
14 Therefore the Lord himself will give you a sign. Behold, the virgin will conceive, and bear a son, and shall call his name Immanuel.
Isaiah 38:22
22 Hezekiah also had said, “What is the sign that I will go up to Yahweh’s house?”
Hosea 6:2
2 After two days he will revive us. On the third day he will raise us up, and we will live before him.