Words of Wisdom
When thou shalt besiege a city a long time, in making war against it to take it, thou shalt not destroy the trees thereof by forcing an axe against them: for thou mayest eat of them, and thou shalt not cut them down (for the tree of the field is man's life) to employ them in the siege:
Only the trees which thou knowest that they be not trees for meat, thou shalt destroy and cut them down; and thou shalt build bulwarks against the city that maketh war with thee, until it be subdued.
Deuteronomy 20:19, 20
And these are the singers, chief of the fathers of the Levites, who remaining in the chambers were free: for they were employed in that work day and night. 1 Chronicles 9:33
Only Jonathan the son of Asahel and Jahaziah the son of Tikvah were employed about this matter: and Meshullam and Shabbethai the Levite helped them. Ezra 10:15
And they shall sever out men of continual employment, passing through the land to bury with the passengers those that remain upon the face of the earth, to cleanse it: after the end of seven months shall they search. Ezekiel 39:14