10 Moses and Aaron performed all these wonders before Pharaoh, but the LORD hardened Pharaoh’s heart, and he would not let the Israelites go out of his country.

Read Exodus 11:10 Using Other Translations

And Moses and Aaron did all these wonders before Pharaoh: and the LORD hardened Pharaoh's heart, so that he would not let the children of Israel go out of his land.
Moses and Aaron did all these wonders before Pharaoh, and the LORD hardened Pharaoh's heart, and he did not let the people of Israel go out of his land.
Moses and Aaron performed these miracles in Pharaoh’s presence, but the LORD hardened Pharaoh’s heart, and he wouldn’t let the Israelites leave the country.