'Hard' in the Bible

They made their lives bitter with hard labor in mortar, brick, and all kinds of field work. All their labor was harsh and severe.

And I will make Pharaoh’s heart hard, and multiply My signs and My wonders (miracles) in the land of Egypt.

Then the Lord said to Moses, “Pharaoh’s heart is hard; he refuses to let the people go.

But the magicians of Egypt did the same by their secret arts and enchantments; so Pharaoh’s heart was hardened, and he did not listen to Moses and Aaron, just as the Lord had said.

But when Pharaoh saw that there was [temporary] relief, he hardened his heart and would not listen or pay attention to them, just as the Lord had said.

But when Pharaoh saw that the rain and the hail and the thunder had ceased, he sinned again and hardened his heart, both he and his servants.

Then the Lord said to Moses, “Go to Pharaoh, for I have hardened his heart and the heart of his servants [making them determined and unresponsive], so that I may exhibit My signs [of divine power] among them,

The Lord hardened the heart of Pharaoh, king of Egypt, and he pursued the Israelites, as they were leaving confidently and defiantly.

And they judged the people at all times; they would bring the difficult cases to Moses, but every minor dispute they judged and decided themselves.