New International Version
Then the LORD rained down burning sulfur on Sodom and Gomorrah–from the LORD out of the heavens.
Calvin’s Commentary on the Bible
To this point belongs what Moses says, that the Lord rained fire from the Lord. The repetition is emphatical.
…..I say, they reason inconclusively, who hence elicit a plurality of Persons, whereas the design of Moses was to raise the minds of the readers to a more lively contemplation of the hand of God.