'Third' in the Bible

So Ahaziah again sent a captain of a third fifty with his fifty [fighting men]. And the third captain of fifty went up and came bowed down on his knees before Elijah, and begged him [for compassion] and said to him, “O man of God, please let my life and the lives of your servants, these fifty, be precious in your sight.

He commanded them, saying, “This is the thing that you shall do: a third of you who come in [reporting for duty] on the Sabbath shall keep watch over the king’s house

(a third shall also be at the [city] gate Sur, and a third at the gate behind the guards); so you shall keep watch over the palace [from three posts] for defense.

Now it came about in the third year of Hoshea the son of Elah king of Israel, Hezekiah the son of Ahaz king of Judah became king.

‘Then this shall be the sign [of these things] to you [Hezekiah]: this year you will eat what grows of itself, in the second year what springs up voluntarily, and in the third year sow and reap, plant vineyards, and eat their fruit.

“Go back and tell Hezekiah the leader of My people, ‘Thus says the Lord, the God of David your father (ancestor): “I have heard your prayer, I have seen your tears. Behold, I am healing you; on the third day you shall go up to the house of the Lord.

Hezekiah said to Isaiah, “What will be the sign that the Lord will [completely] heal me, and that I shall go up to the house of the Lord on the third day?”