A lord - Rather, “the captain,” as in Exodus 14:7; 1 Kings 9:22; etc. The term itself, שׁלישׁ shâlı̂ysh (derived from שׁלושׁ shâlôsh, “three,”) may be compared with the Latin “tribunus.”
Windows - Rather, “sluices” (compare Genesis 7:11). The “lord” means to say “If Yahweh were to open sluices in heaven, and pour down grain as He poured down rain in the time of the Deluge, even then could there be such abudnance as thou speakest of?”