Ezekiel 14:20

Though Noah, Daniel, and Job, [were] in it
Who are again mentioned by name, as in ( Ezekiel 14:14 ) ; and are the three men referred to in ( Ezekiel 14:16 Ezekiel 14:18 ) ; [as] I live, saith the Lord God, they shall deliver neither son nor
daughter;
not so much as an only son, or an only daughter, no, not even a single child: the plural number is used before, as in ( Ezekiel 14:16 Ezekiel 14:18 ) ; here the singular, to show how resolutely determined the Lord was upon the destruction of the land; that even the prayers of the best of men among them should not prevail with him to save a single person, no, not a single infant: they shall [but] deliver their own souls by their righteousness;
(See Gill on Ezekiel 14:14).