John Gill Bible Commentary

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 Kg2 18:4 and Hecataeus (b), an Heathen historian, relates of the city of Jerusalem, that there were there no image, nor plantation, nor grove, nor any such thing. (b) Apud Euseb. Praepar. Evangel. l. 9. c. 4. p. 408.