What are depths?

Famous quotes containing the word depths:

    The day is not purer than the depths of my heart.
    Jean Racine (1639–1699)

    my father moved through dooms of love
    through sames of am through haves of give,
    singing each morning out of each night
    my father moved through depths of height
    —E.E. (Edward Estlin)

    Out of the depths have I cried unto thee, O Lord.
    Bible: Hebrew Psalm CXXX (l. CXXX, 1)