Christians argue both for and against the death penalty using secular arguments, but like other religious people they often make an additional case based on the tenets of their faith.
Evidence in favour of the death penalty is shown in the Bible.
Whoever sheds the blood of man, by man shall his blood be shed. Genesis 9:6
The death penalty is consistent throughout the Old Testament and suggests that God created the death penalty.
The New Testament includes the most famous religious execution in history – that of Jesus on the cross. But paradoxically, although the tone of the whole of the New Testament is one of forgiveness, it seems to take the right of the state to execute offenders for granted.
Whatever measure you deal out to others will be dealt back to you. Matthew 7:2
Evidence against the death penalty in the Bible.
‘Only God should create and destroy life’
This argument is used to oppose abortion and euthanasia as well.
Many Christians believe that God commanded “Thou shalt not kill” (Exodus 21:13), and that this is a clear instruction with no exceptions.
(Content sourced from BBC: Ethics)