Genesis 46:11 is a simple statement of genealogy. It means that among the descendants of Jacob who traveled to Egypt, were the three sons of Levi, named Gershon, Kohath, and Merari.

Here's a breakdown of its significance:

Levi: Levi was one of Jacob's twelve sons, and the ancestor of the Levites.
Gershon, Kohath, and Merari: These three were the sons of Levi, and therefore the grandsons of Jacob. They are listed as the heads of the major divisions within the Levite tribe. Each son's descendants formed a distinct clan, and they had specific roles in the service of the Tabernacle (and later the Temple).

The verse is important because it:

1. Establishes lineage: It traces the family line from Jacob down to Levi's sons, showing their place within the larger family of Israel.
2. Sets the stage for later events: The descendants of Gershon, Kohath, and Merari would play crucial roles in the Exodus and the subsequent establishment of Israelite worship. Specifically, they were responsible for the care and transportation of the Tabernacle and its components.

So, this seemingly simple verse is more than just a list of names. It connects the past, present, and future of the Israelite people, and it highlights the importance of the Levite tribe in their history and religious life.