'Lost' in the Bible

“Flight will be lost to the swift [so they will be unable to escape],And the strong shall not strengthen nor maintain his power,Nor shall the mighty man save his own life.

I will turn your festivals into funerals, and all your songs into funeral dirges. I will make everyone wear funeral clothes and cause every head to be shaved bald. I will make you mourn as if you had lost your only son; when it ends it will indeed have been a bitter day.

“For behold, I am commanding,And I shall shake and sift the house of Israel among all nations [and cause it to tremble]Like grain is shaken in a sieve [removing the chaff],But not a kernel [of the faithful remnant] shall fall to the ground and be lost [from My sight].