Kommentar zu Bereschit 38:12

ויעל על גזזי צאנו AND HE WENT UP UNTO HIS SHEEP-SHEARERS — it means: and he went up to Timnah to stand by his sheep-shearers.

AND JUDAH, WENT UP UNTO HIS SHEEP-SHEARERS. He would go there continually to console himself after his wife’s death so that he may turn his attention to the sheep and forget his poverty.¹⁷⁰Proverbs 31:7. [and remember his trouble no more.] Now when it was told to Tamar that he goes up there daily without fail, she waited for him on one of those days. It may be that since Judah was prominent in the land, people would assemble there to make a feast at the time of the shearing, similar to a royal feast, and the poor would go there, and it was told to her before he went up there.

ותמת בת שוע, so that Yehudah should have brought his daughter-in-law into his house as a replacement for his wife. This is what Avraham had done when Yitzchok’s wife Rivkah moved into Sarah’s tent after the latter had died. (24,67) Yehudah’s failure to give Tamar his wife’s quarters to live in may have caused her to despair of having any kind of future in his family.