'Of the Flesh' in the Bible

And there shall be no leaven seen with thee in all thy borders seven days. Neither shall any of the flesh, which thou sacrifice the first day at evening, remain all night until the morning.

so that he will not give to any of them of the flesh of his sons whom he shall eat, because he has nothing left to him, in the siege and in the distress with which thine enemy shall distress thee in all thy gates.