Shared ground
Exodus 6:26–27 is the narrator’s clear pointer: the “Aaron and Moses” in the preceding family record are the same men who receive Yahweh’s directive and who confront Pharaoh. The repeated “these are” functions like a signature, reattaching the genealogy to the main storyline.
The text explicitly presents leadership as appointed and tasked: Yahweh speaks a commission (“bring out the children of Israel from Egypt”), and Moses and Aaron are identified as the agents who speak to “Pharaoh king of Egypt” toward that end. The stress falls on their public role and authorization, not on their private character.
Where interpretation differs
A main question is what “according to their hosts” adds. Some read it as highlighting military-style organization or large-scale mobilization; others take it more generally as “in ordered groups,” stressing that Israel’s departure is communal and structured rather than an unplanned escape.
Another smaller question is why the names appear in both orders (“Aaron and Moses” / “Moses and Aaron”). Some see a rhetorical emphasis with no further implication; others think it may reflect shifting focus—Aaron as spokesperson in one frame, Moses as primary leader in another—without changing the basic claim that both are appointed.
Why the disagreement exists
The wording “according to their hosts” is brief and can carry a range of everyday meanings (order, divisions, readiness). Also, the repeated identification can sound either like a summary of what has already happened or like a setup for what immediately follows (6:28–7:7), so readers weigh the repetition differently.
What this passage clearly contributes
These verses tie family lineage to public mission: the genealogy is not trivia but a way to identify the authorized leaders. The passage also frames the exodus as an organized corporate deliverance (“according to their hosts”) and as a direct challenge addressed to the highest Egyptian authority (“Pharaoh king of Egypt”). The narrator leaves no ambiguity about who is responsible for speaking and acting on Yahweh’s commission: Moses and Aaron (Exodus 6:26, Exodus 6:27).