The number 40,000 has no independent, well-established symbolic meaning in biblical and Jewish tradition, but it is built upon the symbolically charged base number 40.

In the Bible, the number 40 is strongly linked to testing, purification, and preparation—as in Israel's 40 years in the wilderness, Moses' 40 days on Mount Sinai, and Jesus' 40 days in the desert. The number 40,000 appears in some biblical texts as a large, round figure for military forces (for example, Judges 5:8), but then functions more as a literary indication of a great multitude than as an independent symbol. Any symbolic interpretations of 40,000 will therefore mainly be derived from the base number 40 multiplied by 1,000, where 1,000 represents completeness or a large scale.