Who has the power of death - the devil or God?

Hebrews 2:14 “Forasmuch then as the children are partakers of flesh and blood, he also himself likewise took part of the same; that through death he might destroy him that had the power of death, that is, the devil;”

This verse appears to say that the devil has the power of death over us. How do we understand this?

The Bible uniformly says that God is the one who controls death and not the devil. Rev 1:18, 2:23, 6:8, Heb 5:7. This is further complicated by the term second death. If physical death is not the end since there is a resurrection of all people from the dead (Rev. 20:13), then we need to understand the death as being second death. 

I Cor 15:56 says that the sting of death is sin. That means if sin was not there, death would be harmless. But since the adverse effect of sin has been dealt with by Jesus on the cross, the sting of death has vanished and so death has no power on us any longer. We no longer face the second death (Rev. 20:6).

Most commentators therefore interpret Hebrews 2:14  as 'he who has power to destroy us through sin'. This sin results in our death, if we have not accepted Jesus as our Saviour. So though the second death comes from the judgement of God, the devil ha some influence here by tempting us to sin. This is referred to as the devil having the power of death.