וַאֲבִימֶ֕לֶךְ לֹ֥א קָרַ֖ב אֵלֶ֑יהָ וַיֹּאמַ֕ר אֲדֹנָ֕י הֲג֥וֹי גַּם־צַדִּ֖יק תַּהֲרֹֽג׃
Now Abimelech had not come near her; and he said: ‘Lord, wilt Thou slay even a righteous nation?
Read halakhic rulings (Jewish law) on Genesis 20:4: and classical halakhic sources.