Hebrews 12:17 in the King James Version
For ye know how that afterward, when he would have inherited the blessing, he was rejected: for he found no place of repentance, though he sought it carefully with tears.
Context
16 lest there be any sexually immoral person or profane person, like Esau, who sold his birthright for one meal.
17 For you know that even when he afterward desired to inherit the blessing, he was rejected, for he found no place for a change of mind though he sought it diligently with tears.
18 For you have not come to a mountain that might be touched and that burned with fire, and to blackness, darkness, storm,