 Wisdom is a central topic in the "sapiential" books, i.e.Proverbs, Psalms, Song of Songs, Ecclesiastes, Book of Wisdom, Wisdom of Sirach, and to some extent Baruch (the last three are Deuterocanonical books of the Old Testament).The expression itself is not found in the New Testament, even though passages in the Pauline epistles equate Christ with the "wisdom of God" ().