Venom and all symbiotes are afraid of Knull because he is their creator and the god of the symbiotes

In Marvel Comics, Venom (and all symbiotes) are afraid of Knull because he is their creator and the god of the symbiotes. Here's a breakdown of why:

1. Knull's Role as Symbiote Creator: Knull is an ancient and malevolent cosmic entity who existed before the universe's creation. He created the first symbiote, known as the All-Black Necrosword, and later went on to forge more symbiotes from the darkness, becoming their literal god.

2. Symbiote Hive-Mind: All symbiotes are connected to a hive-mind that links them back to Knull. Even when separated from Knull for millennia, the symbiotes inherently carry the memory of his domination and cruelty. They were originally created to be Knull's army, and his control over them is absolute.

3. Knull’s Power: Knull is immensely powerful, far more than any individual symbiote like Venom. He wields cosmic abilities like darkness manipulation, shaping matter, immortality, and the power to control symbiotes at will. His presence alone instills terror because the symbiotes know they cannot resist him.

4. History of Subjugation: Knull ruled over the symbiotes with tyranny and cruelty, and
when some symbiotes tried to break free of his control, they betrayed him and trapped him in a planet they formed, called Klyntar. This memory of subjugation left an imprint on Venom and other symbiotes, making them instinctively fear him.

When Knull finally made his return in modern comics, Venom, along with all other symbiotes, experienced a deep fear because they were once again subject to the will of their god and creator.

Knull, the dark god of symbiotes in Marvel Comics, has killed several notable superheroes during his rampage across the universe. Some key figures Knull has killed or severely harmed include:

1. Sentry: During the "King in Black" event, Knull brutally killed Sentry, one of Marvel’s most powerful superheroes. He tore him in half with ease, sending a message of his unstoppable power to Earth's heroes.

2. Silver Surfer (Alternate Reality): In certain alternate realities, Knull has defeated and killed versions of the Silver Surfer, overpowering the cosmic hero despite his immense power.

3. Celestials: While not traditional superheroes, Knull has also killed several Celestials, cosmic beings of immense power that have influenced the Marvel Universe's creation and balance. This emphasizes his threat level on a cosmic scale.

Knull's rampage affects many heroes and villains as he brings darkness to Earth and the universe, leaving devastation in his wake.