John Calvin on Isaiah 30:24

24. Thine oxen also. When he promises that the oxen and the asses shall eat abundant and clean provender, this is a repetition and confirmation of what was stated in the preceding verse. This passage is taken from the Law, (Deuteronomy 28:11,) and is gladly and frequently quoted by the prophets, in order that we may learn to discern in the sickness and death of cattle the indignation of God, and to desire more earnestly to be reconciled to him, that our houses may be filled with his goodness.