Deuteronomy 16:21

Thou shall not plant thee a grove of any trees ,.... Of any sort of trees, as oaks or any other; not but that it was lawful to plant trees and groves of them, but not for a religious or idolatrous use: particularly

near unto the altar of the Lord thy God, which thou shalt make thee ; as the Heathens did near their altars, lest it should be thought to be done for a like superstitious and idolatrous use; which evil the Jews sometimes fell into in the times of wicked reigns, and which their good and pious kings removed and destroyed; see 2 Kings 18:4 and Hecataeus F2 Apud Euseb. Praepar. Evangel. l. 9. c. 4. p. 408. , an Heathen historian, relates of the city of Jerusalem, that there were there no image, nor plantation, nor grove, nor any such thing.