CCC 238 Many religions invoke God as “Father”. The deity is often considered the “father of gods and of men”. In Israel, God is called “Father” inasmuch as he is Creator of the world.1 Even more, God is Father because of the covenant and the gift of the law to Israel, “his first-born son”.2 God is also called the Father of the king of Israel. Most especially he is “the Father of the poor”, of the orphaned and the widowed, who are under his loving protection.3

CCC 1540 Instituted to proclaim the Word of God and to restore communion with God by sacrifices and prayer,4 this priesthood nevertheless remains powerless to bring about salvation, needing to repeat its sacrifices ceaselessly and being unable to achieve a definitive sanctification, which only the sacrifice of Christ would accomplish.5

1 Cf. Deut 32:6; Mal 2:10.
2 Ex 4:22.
3 Cf. 2 Sam 7:14; Ps 68:6.
4 Cf. Mal 2:7-9.
5 Cf. Heb 5:3; 7:27; 101-4.