Sanctifying Grace
The supernatural state of being infused by God, which permanently inheres in the soul. It is a vital principal in the spiritual life, as the rational soul is a vital principal of a human being’s natural life. It is not a substance but a real quality that becomes part of the soul’s substance. Although commonly associated with the possession of the virtue of charity, sanctifying grace is yet distinct. Charity, rather belongs to the will, whereas Sanctifying Grace belongs to the whole soul, will, affections and mind. It is called Sanctifying grace because it makes holy those who possess this gift by giving them a participation in the Divine life. It is the zoe (eternal life: Greek) which Christ taught that He had in common with the Father and those who are in the state of grace share.
Justifying Grace
Is the grace by which a person is restored to God’s friendship, either for the first time, as in Baptism, or after baptism, in the sacrament of Penance.