There are a bunch of parallels between this Torah portion ( #toldot, Gen 25:19-28:9) and the story of Samson.

-Isaac and Manoah pray for a son.
-An angel of YHWH visited mothers of Jacob and Samson to announce their conceptions.
-Isaac 40 yrs old at marriage. Philistines oppressed Israel 40 yrs.
-Philistines took Isaac's and Samson's wives.
-Philistines destroyed Isaac's well. Samson destroyed Philistine crops.
-Isaac de-escalates conflict. Samson escalates it.
-Esau and Samson are hairy.
-Isaac and Samson are blinded.
-Isaac means laughter. The Philistines laughed at Samson.
-Isaac and Samson both reach out to touch something.