'Insensitive' in the Bible

And Yahweh said to Moses, "Pharaoh's heart [is] {insensitive}; he refuses to release the people.

And Pharaoh saw that there was relief, and he made his heart {insensitive}, and he did not listen to them, as Yahweh had spoken.

And Pharaoh made his heart {insensitive} also this time, and he did not release the people.

And Pharaoh sent [to check], and {it turned out} not even one from the livestock of Israel had died, but Pharaoh's heart was {insensitive}, and he did not release the people.

And Pharaoh saw that the rain and the hail and the thunder stopped, and {he again sinned} and made his heart {insensitive}, he and his servants.

And Yahweh said to Moses, "Go to Pharaoh, for I have made his heart {insensitive} and the heart of his servants in order to put these signs of mine in his midst,