Abraham went ahead and obeyed. However, Jehovah did not allow Abraham to do what He himself would do one day.
لكِنَّ يَهْوَه لَمْ يَدَعْهُ يَفْعَلُ مَا كَانَ هُوَ نَفْسُهُ سَيَفْعَلُهُ فِي ٱلْمُسْتَقْبَلِ .‏