Apostolic Constitutions, Book VII 48

1You children, praise the Lord: praise the name of the Lord. We praise You, we sing hymns to You, we bless You for Your great glory, O Lord our King, the Father of Christ the immaculate Lamb, who takes away the sin of the world. Praise becomes You, hymns become You, glory becomes You, the God and Father, through the Son, in the most holy Spirit, for ever and ever. Amen. Now, O Lord, let Your servant depart in peace, according to Your word; for my eyes have seen Your salvation, which You have prepared before the face of all people, a light for the revelation to the Gentiles, and the glory of Your people Israel.