Thematic Bible: The last enemy that shall be destroyed

Since therefore the children partake of blood and flesh, he also, in like manner, took part in the same, that through death he might annul him who has the might of death, that is, the devil; and might set free all those who through fear of death through the whole of their life were subject to bondage.

For he must reign until he put all enemies under his feet. The last enemy that is annulled is death. For he has put all things in subjection under his feet. But when he says that all things are put in subjection, it is evident that it is except him who put all things in subjection to him. read more.
But when all things shall have been brought into subjection to him, then the Son also himself shall be placed in subjection to him who put all things in subjection to him, that God may be all in all.)