Shared ground
Isaiah 47:4 briefly identifies “our Redeemer” and then names and describes him. The verse presents the Redeemer as Yahweh himself, not an unnamed force or a merely human rescuer. It adds two identity titles: “Yahweh of hosts” and “the Holy One of Israel.”
In the flow of Isaiah 47 (an announcement of Babylon’s humiliation), this line works like a signature inside the oracle. It shifts attention from Babylon’s coming fall to the authority and character of the one behind it.
Where interpretation differs
Who “our” refers to. Some read “our” as the prophet speaking on behalf of Israel as a whole in exile. Others read it as the voice of the faithful within Israel (a subset), emphasizing that redemption language belongs especially to those who truly identify with Israel’s God.
What “hosts” means here. Some take “hosts” mainly as earthly armies (God’s rule over international power). Others take it mainly as heavenly beings (a picture of cosmic authority). Many read it as broad on purpose, covering every force—seen and unseen.
Why the disagreement exists
The verse is a compact, stand-alone identification, and it does not spell out its implied subjects (“our”) or define “hosts.” Because it appears abruptly inside a judgment speech against Babylon, readers also weigh whether it is an aside (for Israel’s reassurance) or direct speech continuing the oracle.
What this passage clearly contributes
Explicitly, the verse links redemption language with Israel’s God and Israel’s identity: the Redeemer is Yahweh, titled “of hosts” (supreme authority) and “the Holy One of Israel” (distinct in character and bound to Israel by name). Theologically inferred (from context) is that Babylon’s fall is presented as more than political turnover: it is portrayed as an act carried out under Yahweh’s unrivaled rule and consistent with his holy identity. See also Isaiah 47:4.