...no one really knows who this attacker is. Some say it’s an angel. Perhaps even Esau’s guardian angel. Others say it’s a demon out to prevent Jacob from reconciling with his brother. Still others see him as the personification of the dangers lurking in the darkness. And yet others say it’s actually God.
But I like what Rabbi Harold Kushner says. Rabbi Kushner notes that Jacob is alone. And that the attacker is exactly as strong as Jacob. No stronger, but no weaker. Which is why they can’t beat each other and they last all night.
The rabbi says, “The attacker, the angel, is Jacob’s conscience, the part of him that summons him to rise above his bad impulses. The struggle is between the part of him that wins by cleverness and fraud, and the part of him that feels summoned by God to climb a ladder to heaven, to become someone exemplary.” (Kushner, Living a Life That Matters p. 26)
In other words, Jacob is at war with...(whole thing here)