How can we acquire holiness and discernment?

God who is holy is the source of holiness. Whoever enters into fellowship with God becomes aware that he is a child of the holy Father, and the Holy Spirit dwells in him to fashion him into a temple for God, and make him a holy member in the body of Christ. All of this is achieved by the free gift of God’s divine grace.

752 St. John Chrysostom, Homilies on Romans 10 (NPNF I/11:405–406) amended.

753 St. John Chrysostom, Baptismal Instructions 12.13–14 (ACW 31:176–177) amended.