'Flesh' in the Bible

This wisdom is not from heaven, but is of the earth and the flesh and the Evil One.

Your gold and silver is cankered; and the rust of them shall be a witness against you, and shall eat your flesh as it were fire. Ye have heaped treasure together for the last days.

Elijah was a man of flesh and blood as we are, and he made a strong prayer that there might be no rain; and there was no rain on the earth for three years and six months.