"Lo" is an exclamation used primarily in English to draw attention or to indicate surprise. It originates from the Old English word "la," which served a similar purpose. In modern usage, it often appears in literary or poetic contexts, emphasizing a moment of revelation or significant occurrence. The term is sometimes associated with biblical texts, where it is used to highlight important messages or events. For example, in the King James Bible, "lo" appears frequently to introduce significant statements, enhancing the dramatic effect of the narrative.