Parashas Vaeira · Passuk 6:23
Chabad.org — English translation + Rashi
Torah Temimah points to Bava Basra 109b (verified).
Sefaria — Exodus 6:23
Sefaria — Bava Basra 109b
E-Daf — Bava Basra 109b
English: “Rabbi Elazar said: A person should always attach himself to the good. Moses married the daughter of Yitro and produced Jonathan, while Aaron married the daughter of Aminadav and produced Phinehas.”
On the daf / in context: See the cited source for the full section.
Talmudic ethical teaching about choosing worthy family connections
Chazal use the contrasting descendants of Moses and Aaron to teach the importance of attaching oneself to worthy people and families.