May Catholics Pray Jewish Prayers?

Jesus reminds us that salvation is from the Jews (John 4:22), as he indeed the Jewish Messiah and Savior of all mankind. And Jesus is the King of the new and fulfilled Israel, the Catholic Church (see Matt. 16:18-19, Gal. 6:15).

Given those realities, Catholics may pray Jewish prayers from the Old Testament, for example. Indeed, the Church prays the Psalms each day at Mass and in the Liturgy of the Hours (Divine Office). The only exceptions would be later prayers following the establishment of the Church in which Church teaching is contradicted, e.g., praying for a Messiah who has already come and completed his earthly ministry.