Martin Luther (Letter to Hansen von Rechenberg, Luther’s Briefe, ii. 454 (1523):

“God forbid that I should limit the time for acquiring faith to the present life. In the depths of the divine mercy there may be opportunity to win it in the future state.”

The late Bishop Timothy Ware (Greek Orthodox Church):

“Hell exists as a final possibility, but several of the Fathers have none the less believed that in the end all will be reconciled to God....we must not despair of anyone's salvation, but must long and pray for the reconciliation of all without exception. No one must be excluded from our loving intercession. ‘What is a merciful heart?’ asked Isaac the Syrian. ‘It is a heart that burns with love for the whole of creation, for humans, for birds, for the beasts, for the demons, for all creatures.’ Gregory of Nyssa said that Christians may legitimately hope even for the redemption of the devil.” (The Orthodox Church, New Edition, p. 262)