וַיִּזְבַּ֨ח יַעֲקֹ֥ב זֶ֙בַח֙ בָּהָ֔ר וַיִּקְרָ֥א לְאֶחָ֖יו לֶאֱכָל־לָ֑חֶם וַיֹּ֣אכְלוּ לֶ֔חֶם וַיָּלִ֖ינוּ בָּהָֽר׃
야곱이 또 산에서 제사를 드리고 형제들을 불러 떡을 먹이니 그들이 떡을 먹고 산에서 경야하고
Rashi on Genesis
ויזבח יעקב זבח AND JACOB OFFERED A SACRIFICE — he slaughtered cattle for the feast
Sforno on Genesis
ויקרא לאחיו, of Lavan. There was no need to invite Lavan himself seeing he was like a father to Yaakov’s children.
Radak on Genesis
ויזבח, he prepared a festive meal so that they would eat together before taking leave of each other. This was in honour of the covenant just concluded.