God's Mercy and Grace - John Cassian

The thief on the cross certainly did not receive
the Kingdom of Heaven as a reward for his virtues
but as a grace and mercy from God.
He can serve as an authentic witness
that our salvation is given to us
only by God's mercy and grace.
All the holy masters knew this
and unanimously taught that perfection in holiness
can be achieved only through humility.



— John Cassian