For Tinamatt, Ebon Pinion refers to black (ebon) wings (pinion). Like night is floating in on black wings.
Growing up I thought Ebon Pion was one of two things. Either a guy Jesus spent the night with ("since he had no place to go Jesus spent the night with Ebon and Bertha Pinon. A nice elderly couple.") or it was another name for Jesus ("wonderful counselor, almighty God, the everlasting Father, Ebon Pinion.")
It makes me wonder how many people get anything out of this song.