Moses
Genesis 7:21BSB·traditional attribution

And every living thing that moved upon the earth perished—birds, livestock, animals, every creature that swarms upon the earth, and all mankind.

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. The general destruction of all flesh by the waters of the flood. Come, and see the desolations which God makes in the earth (Psa 46:8), and how he lays heaps upon heaps. Never did death triumph, from its first entrance unto this day, as it did then. Come, and see Death upon his pale horse, and hell following with him, Rev 6:7, Rev 6:8. 1.

Commenting on Genesis 7:21-24

John Gill Reformed Baptist @doctorgill

And every living substance was destroyed which was upon the face of the ground,.... Not everything, particularly trees; for after the flood was abated there was an olive tree, a leaf of which was brought to Noah by the dove, Gen 8:11 but all animals: both men and cattle, and the creeping things, and the fowl of the heaven, and they were destroyed from the...

Jamieson-Fausset-Brown Reformed @jfbcommentary

all flesh died . . . fowl . . . cattle, and . . . creeping thing--It has been a uniform principle in the divine procedure, when judgments were abroad on the earth, to include every thing connected with the sinful objects of His wrath (Gen 19:25; Exo 9:6).