49:6 It is trivial for you to be The Servant announced His mission to Israel in v. 5. Now, Yahweh reveals that the mission is not to Israel only, but to all the nations of the world. Redeeming Israel alone was too easy; Yahweh wishes for a greater display of His sovereignty.
a light to the nations Compare 42:6, where Israel may be given this mission to be a light to the nations (see note on 42:1–9). The mission that was Israel’s corporately is reassigned to the Servant individually, who fulfills Israel’s obligations to Yahweh in order to restore their relationship.
be my salvation to the end of the earth The entire world—not just Israel—will have access to Yahweh’s salvation through the Servant (see Acts 13:47). Isaiah has elsewhere hinted that the nations would one day be included in the people of God (see Isa 2:2–4).
Barry, J. D., Mangum, D., Brown, D. R., Heiser, M. S., Custis, M., Ritzema, E., … Bomar, D. (2012, 2016).
Faithlife Study Bible (Is 49:6). Bellingham, WA: Lexham Press.