Music is an intrinsic part of Jewish expression, reaching back to the biblical "Song of the Sea," which appears in Exodus, and the Psalms composed by King David. Employing the tools of Jewish mysticism, Music and Kabbalah examines the spiritual connection between God and music. The holy aspects of the musical scale, musical terminology, and instruments named in the Psalms are deciphered by using the gematria (interpretive numeric value) of their Hebrew names. Rabbi Glazerson employs music as a vehicle with which to teach that "Judaism and the Hebrew language, the holy tongue, are vast and deep, embracing incomprehensible knowledge of every aspect and sphere of life."