What is the origin of the idiom "in the lap of the gods" and when to use it?

The idiom "in the lap of the gods" finds its origin in ancient Greek and Roman mythology. In these mythological traditions, gods and goddesses were often depicted as sitting or reclining on thrones with their laps serving as a symbol of comfort and protection. It was believed that the gods held the power to influence and determine the course of human lives and events. It is often employed when facing situations where the outcome is uncertain or beyond human influence, emphasizing a sense of resignation or acceptance.