Therefore, when he underwent the Techiyas HaMoshiach (Resurrection of the Moshiach), his talmidim remembered that this he was saying and v'ya'aminu (and they put their faith SHEMOT 14:31) in the Kitvei Hakodesh [TEHILLIM 16:9-10] and the dvar which Rebbe, Melech HaMoshiach said.