behold. Figure of speech Asterismos. App-6.
do the service. Hebrew serve the service. Figure of speech Polyptoton. App-6. perform the solemn service.
Related Commentaries of Numbers 18:6
Numbers 18:6
6 And I, behold, I have taken your brethren the Levites from among the children of Israel: to you they are given as a gift for the LORD, to do the service of the tabernacle of the congregation.