'Sand of the Sea' in the Bible

“Their widows will be more numerous before MeThan the sand of the seas;I will bring against them, against the mother of a young man,A destroyer at noonday;I will suddenly bring down on herAnguish and dismay.

As the host of heaven cannot be counted and the sand of the sea cannot be measured, so I will multiply the descendants of David My servant and the Levites who minister to Me.’”