'Stubbornly' in the Bible

When Pharaoh stubbornly refused to let us go, the Lord killed every firstborn male in the land of Egypt, from the firstborn of man to the firstborn of livestock. That is why I sacrifice to the Lord all the firstborn of the womb that are males, but I redeem all the firstborn of my sons.’

You warned them to turn back to Your law,but they acted arrogantlyand would not obey Your commands.They sinned against Your ordinances,which a person will live by if he does them.They stubbornly resisted,stiffened their necks, and would not obey.