Gevurot 1:4-5

Orthodox Jewish Bible

⁴ And, while gathering them at a yechidus, Moshiach gave instructions to them not to depart from Yerushalayim, but to wait for the havtachah (promise) of [Elohim] HaAv which he said, "You heard of from Me. [TEHILLIM 27:14]

⁵ "For Yochanan gave a tevilah of teshuva with a mikveh mayim, but you will receive a tevilah in the Ruach Hakodesh not many yamim from now." [YOEL 3:1;(2:28)]