so that men and beasts are abundantly provided with food.
for the service - literally, “for the culture,” etc., by which he secures the results.
oil ... shine - literally, “makes his face to shine more than oil,” that is, so cheers and invigorates him, that outwardly he appears better than if anointed.
strengtheneth ... heart - gives vigor to man (compare Jdg 19:5).