כִּֽי־אָ֛ז אֶהְפֹּ֥ךְ אֶל־עַמִּ֖ים שָׂפָ֣ה בְרוּרָ֑ה לִקְרֹ֤א כֻלָּם֙ בְּשֵׁ֣ם יְהוָ֔ה לְעָבְד֖וֹ שְׁכֶ֥ם אֶחָֽד׃
For then will I turn to the peoples A pure language, That they may all call upon the name of the LORD, To serve Him with one consent.
Mishneh Torah, Kings and Wars
Now, if a king should arise from the House of David who is versed in Torah and engages in Commandments, as did David his forefather, in accordance with both the Written and the Oral Torahs, and he enjoins all of Israel to follow in its ways and encourages them to repair its breaches, and he fights the Wars of G-d128I.e. he defends Israel., then he may be presumed to be the Messiah. If he succeeds in his efforts and defeats the enemies around and builds the Sanctuary in its proper place and gathers the dispersed of Israel, he is definitely the Messiah.
Mishneh Torah, Kings and Wars
Nonetheless, the Thoughts of the Creator of the World are beyond any man’s understanding. For our ways are not His Ways, and our thoughts are not His Thoughts. And all the doings of Jesus the Nazarene and that of that Ishmaelite131I.e. Mohammed. The Rambam labels him “Meshugah” in his Igeress Teiman. who came after him are nothing but to pave the way for the King Messiah and prepare the entire world to worship G-d together, as it says, “For then132When they will realize that their Messiahs were false will they abandon them and turn to G-d’s true Messiah. I will turn to the peoples a pure language, that they may all call upon the Name of the Lord, to serve Him with one consent” (Zephania 3:9).