﴿ وَلَوْ نَشَآءُ لَمَسَخْنَٰهُمْ عَلَىٰ مَكَانَتِهِمْ فَمَا ٱسْتَطَٰعُوا۟ مُضِيًّۭا وَلَا يَرْجِعُونَ ﴾

“And had it been Our will [that they should not be free to choose between right and wrong], We could surely have given them a different nature [and created them as beings rooted] in their places, so that they would not be able to move forward, and could not turn back.]”

(And had We willed, We verily could have fixed them in their place) We could have turned them into apes and swine in their own homes, (making them powerless to go forward) making them unable to come and go (or turn back) to their initial state.