Thou hast also committed fornication with the Egyptians thy neighbours, great of flesh; and hast increased thy whoredoms. Ezekiel 16:26
Trivia: In Ezekiel 14, who were the only three people that God would save?
"Corn" is obviously a mistranslation in the King James Version, since there was no corn in Egypt or anywhere in the Eastern hemisphere in biblical times.
Corn was domesticated 10,000 years ago by indigenous peoples in what is now Mexico.
See notes: Gen 41:49, Lev 2:14