Parallel
Exodus 4:21
Clementine Vulgate · Berean Standard Bible
Dixitque ei Dominus revertenti in Ægyptum : Vide ut omnia ostenta quæ posui in manu tua, facias coram Pharaone : ego indurabo cor ejus, et non dimittet populum.
The LORD instructed Moses, “When you go back to Egypt, see that you perform before Pharaoh all the wonders that I have put within your power. But I will harden (note: Or stiffen or strengthen) his heart so that he will not let the people go.