Moses
Genesis 8:21ESV·traditional attribution

And when the LORD smelled the pleasing aroma, the LORD said in his heart, “I will never again curse the ground because of man, for the intention of man’s heart is evil from his youth. Neither will I ever again strike down every living creature as I have done.

John Calvin Reformed @genevareformer

21. And the Lord smelled a sweet savor “Odorem quietis.” “A savor of rest.” — Margin of English Version. Moses calls that by which God was appeased, an odour of rest; as if he had said, the sacrifice had been rightly offered. Yet nothing can be more absurd than to suppose that God should have been appeased by the filthy smoke of entrails, and of flesh.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. Noah's thankful acknowledgment of God's favour to him, in completing the mercy of his deliverance, Gen 8:20. 1. He built an altar. Hitherto he had done nothing without particular instructions and commands from God. He had a particular call into the ark, and another out of it; but, altars and sacrifices being already of divine institution for religious worship, he did not...

Commenting on Genesis 8:20-22

John Gill Reformed Baptist @doctorgill

While the earth remaineth,.... Which as to its substance may remain for ever, Ecc 1:4 yet as to its form and quality will be changed; that and all in it will be burnt up; there will be an end of all things in it, for so the words are in the original, "as yet all the days of the earth", or "while all the days...