John Wesley on Isaiah 24:5

Defiled - By the wickedness of its people. The laws - The laws of God. Ordinance - God's ordinances concerning his worship and service; the singular being put for the plural. Covenant - The covenant made between God and Abraham, and all his posterity, which was everlasting, both on God's part, who, upon the conditions therein expressed, engaged himself to be a God to them and to their seed forever; and on Israel's part, who were obliged thereby to constant and perpetual obedience thro' all generations.