Deuterocanonical books
The Greek noun "sophia" is the translation of "wisdom" in the Greek Septuagint for Hebrew "". 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 Apocryphal / Deuterocanonical books of the Old Testament.)