en_tn_condensed/heb/12/17.md

he was rejected

"his father, Isaac, refused to bless him"

because he found no opportunity for repentance

"because it was not possible for him to repent" or "because it was not possible for him to change his decision"

even though he sought it with tears

Here "he" refers to Esau. The man Esau, who was told about in the writings of Moses, refers to Isaac's first son and Jacob's brother.