'Forty' in the Bible

But the former governors who were [in office] before me put heavy burdens on the people and took food and wine from them in addition to forty shekels of silver [as an excessive monthly salary]; even their servants assumed authority over the people. But I did not do so because of the [reverent] fear of God.

“Indeed, for forty years You sustained them in the wilderness; they lacked nothing,Their clothes did not wear out, and their feet did not swell.