Moses
Exodus 5:3BSB·traditional attribution

“The God of the Hebrews has met with us,” they answered. “Please let us go on a three-day journey into the wilderness to sacrifice to the LORD our God, or He may strike us with plagues or with the sword.”

John Calvin Reformed @genevareformer

3. And they said, The God of the Hebrews. Moses and Aaron proceed with their message; neither does the pride of the tyrant decrease or weaken their courage in proclaiming the glory of the One true God, who had peculiarly attached Himself to them.

Matthew Henry Presbyterian @wholebiblehenry

Finding that Pharaoh had no veneration at all for God, Moses and Aaron next try whether he had any compassion for Israel, and become humble suitors to him for leave to go and sacrifice, but in vain. I. Their request is very humble and modest, Exo 5:3. They make no complaint of the rigour they were ruled with.

Commenting on Exodus 5:3-9

John Gill Reformed Baptist @doctorgill

And they said, the God of the Hebrews hath met with us,.... Perceiving that the name Jehovah was unknown to him, and treated by him in a scornful manner, they leave it out, and only say, "the God of the Hebrews": a people that dwelt in his country, he well knew by this name, and could not be ignorant that their God was different from...