וַיְקַנֵּ֥א יְהוָ֖ה לְאַרְצ֑וֹ וַיַּחְמֹ֖ל עַל־עַמּֽוֹ׃
그 때에 여호와께서 자기 땅을 위하여 중심이 뜨거우시며 그 백성을 긍휼히 여기실 것이라
Mishneh Torah, Woman Suspected of Infidelity
The warning that is mentioned in the Torah - "And he warned his wife" - is that he tells her in the presence of witnesses, "Do not seclude yourself with Mr. so-and-so," even if that man is her father, her brother, a gentile, a slave, or an impotent person who cannot achieve an erection or produce children."