21 And Jehovah went on to say to Moses: “After you have gone and returned to Egypt see that YOU men actually perform all the miracles that I have put in your hand before Pharʹaoh.+ As for me, I shall let his heart become obstinate;*+ and he will not send the people away.+

15 When Pharʹaoh got to see that relief had taken place, he made his heart unresponsive;*+ and he did not listen to them, just as Jehovah had spoken.+

30 And Siʹhon the king of Heshʹbon did not let us pass through him, because Jehovah your God had let his spirit become obstinate+ and his heart become hard, in order to give him into your hand just as at this day.+

20 For it proved to be Jehovah’s course to let their hearts become stubborn+ so as to declare war against Israel, in order that he might devote them to destruction, that they might come to have no favorable consideration,+ but in order that he might annihilate them, just as Jehovah had commanded Moses.+

18 So, then, upon whom he wishes he has mercy,+ but whom he wishes he lets become obstinate.+