Moses
Genesis 37:4ESV·traditional attribution

But when his brothers saw that their father loved him more than all his brothers, they hated him and could not speak peacefully to him.

Matthew Henry Presbyterian @wholebiblehenry

Moses has no more to say of the Edomites, unless as they happen to fall in Israel's way; but now applies himself closely to the story of Jacob's family: These are the generations of Jacob. His is not a bare barren genealogy as that of Esau (Gen 36:1), but a memorable useful history. Here is, 1. Jacob a sojourner with his father Isaac, who has yet living, Gen 37:1.

Commenting on Genesis 37:1-4

John Gill Reformed Baptist @doctorgill

And when his brethren saw that their father loved him more than all his brethren,.... Which they perceived by various things in his behaviour to him, by his words, his looks, his gestures, and particularly by the coat he had made him, which distinguished him from the rest: they hated him, and could not speak peaceably unto him; they not only inwardly hated him, but...

Jamieson-Fausset-Brown Reformed @jfbcommentary

could not speak peaceably unto him--did not say "peace be to thee" [Gen 43:23, &c.], the usual expression of good wishes among friends and acquaintances. It is deemed a sacred duty to give all this form of salutation; and the withholding of it is an unmistakable sign of dislike or secret hostility.