Parallel
Exodus 14:4
Brenton's English Septuagint · Berean Standard Bible
And I will harden the heart of Pharao, and he shall pursue after them; and I will be glorified in Pharao, and in all his host, and all the Egyptians shall know that I am the Lord. And they did so.
And I will harden (note: Or stiffen or strengthen; similarly in verses 8 and 17) Pharaoh’s heart so that he will pursue them. But I will gain honor by means of Pharaoh and all his army, and the Egyptians will know that I am the LORD.” So this is what the Israelites did.