If we interpret Jericho to mean the moon, and therefore death, our Lord when approaching His death commanded the light of the Gospel to be preached to the Jews only, who are signified by that one blind man whom Luke speaks of, but rising again from the dead and ascending to heaven, to both Jews and Gentiles; and these two nations seem to be denoted by the two blind men whom Matthew mentions.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
Also cites: de Quæst. Ev. l. ii. qu. 48.