בְּק֣וּם רְ֭שָׁעִים יִסָּתֵ֣ר אָדָ֑ם וּ֝בְאָבְדָ֗ם יִרְבּ֥וּ צַדִּיקִֽים׃
악인이 일어나면 사람이 숨고 그가 멸망하면 의인이 많아지느니라
Bereishit Rabbah
Thus it is written: "When the wicked rise, men hide themselves" (Prov. 28:28). Hence it was said: He who raises a wicked son or a wicked disciple eventually suffers dimness of sight. As for a wicked disciple, that follows from Ahijah the Shilonite, for he raised Jeroboam and his eyes grew dim, as it says: "Now Ahijah could not see, for his eyes were set by reason of age" (I Kings 14:4) – because he had raised up Jeroboam, a wicked disciple. As for a wicked son, that follows from Isaac.