Deuteronomy 10:9 - Joseph Benson’s Commentary on the Old and New Testaments

Levi hath no inheritance with his brethren That they might attend only on the duties of their sacred office, provision was made for their maintenance, without their being obliged to plough, or sow, or entangle themselves in other worldly affairs. And is not provision made for the clergy of this and other countries professing Christianity, for a similar reason, namely, that, being under no necessity of entangling themselves in the affairs of this life, they may war a good warfare, and please Him that hath chosen them to be his soldiers? 2 Timothy 2:4. The Lord is his inheritance They are to be maintained out of such tithes and revenues as are appropriated to them by the special appointment of God.