ISB ~ Luke 11 v13

the Holy Spirit:The Father’s greatest gift to us is his own divine life (Jn 14:17). Through the Spirit, he sanctifies his children and distributes the graces of salvation won by Christ (Rom 8:14-17; 1 Cor 12:4-11; Gal 5:22). The fullness of the Spirit was poured out on the day of Pentecost (Acts 2:1-4) (CCC 728, 2670-71).