My servant. See note on Isaiah 37:35 for the three "servants" in Isaiah. This was Israel, as the seed of Abraham, not Cyrus (yet). Compare verses: Isaiah 41:21-29.
chosen. See note on Isaiah 1:29.
My friend. See note on 2 Chronicles 20:7.
Related Commentaries of Isaiah 41:8
Isaiah 41:8
8 But thou, Israel, art my servant, Jacob whom I have chosen, the seed of Abraham my friend.