When the Lord was about to take Elijah up to heaven by a whirlwind, Elijah and Elisha were traveling from Gilgal.

As they continued along and talked, behold, a chariot of fire with horses of fire [appeared suddenly and] separated the two of them, and Elijah went up to heaven in a whirlwind.

(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.