The Announcement of the Redemption

already exists "a king from the House of Dovid, expert in the Torah and involved in mitzvos like Dovid his father... and he will compel all Israel to walk in [the ways of Torah], strengthen its breeches and fight the wars of G-d" - who is the "presumed Moshiach" [b'chezkas Moshiach] - there will already be immediately the "confirmed Moshiach" [Moshiach vadai], who "does all the above and succeeds, builds the Temple in its place and gathers the dispersed of Israel... He will then improve the whole world so that it serves G-d in unity,..."

(From the talk of Shabbos Parshas Shmos, 21 Teves 5752)