The last enemy to be destroyed is death.

Then comes the end, when he hands over the kingdom to God the Father after he has destroyed all rule and all authority and power. For he must reign until he has put all his enemies under his feet. The last enemy to be destroyed is death.read more.
"For God has put all things in subjection under his feet." But when it says, "All things are put in subjection under him," it is plain that he is excepted who put all things under him. When all things are subjected to him, then the Son himself will also be subjected to the one who put all things under him, that God may be all in all.

For David did not ascend into heaven, but he says himself: 'The Lord said to my Lord, "Sit at my right hand, until I make your enemies a footstool for your feet."'

But to which of the angels has he ever said, "Sit at my right hand, until I make your enemies a stool for your feet"?