Deuteronomy 20:20

20:20 However, you may chop down any tree you know is not suitable for food,32 and you may use it to build siege works33 against the city that is making war with you until that city falls.

32	tn Heb “however, a tree which you know is not a tree for food you may destroy and cut down.”
33	tn Heb “[an] enclosure.” The term מָצוֹר (matsor) may refer to encircling ditches or to surrounding stagings. See R. de Vaux, Ancient Israel, 238.