Read Hebrews 2:8 Using Other Translations
Thou hast put all things in subjection under his feet. For in that he put all in subjection under him, he left nothing that is not put under him. But now we see not yet all things put under him.
putting everything in subjection under his feet."Now in putting everything in subjection to him, he left nothing outside his control. At present, we do not yet see everything in subjection to him.
You gave them authority over all things.” Now when it says “all things,” it means nothing is left out. But we have not yet seen all things put under their authority.