Leviticus 19:25
And in the fifth year shall ye eat of the fruit thereof, that it may yield unto you the increase thereof: I am the LORD your God. And in the fifth year shall ye eat of the fruit thereof, that it may yield unto you the increase thereof: I am the LORD your God.
The voice speaking in the chapter containing this command is Jesus Himself. The command forms part of a lesson preserved for future generations beyond its first hearers. That lesson upholds the same high moral standard found in His teachings in the New Testament.