Isa 65:1

65:1 Here am I. This is repeated for emphasis. God’s presence is salvation.

a nation that was not called by my name. That is, Gentiles (42:1; 49:6). Paul quotes this prophecy in Rom. 10:20. God’s salvation does not conform to human expectations; it originates in His free decision. See Rom. 9:11, 12, 25, 26; 10:30, 31; 11:6, 17 on this important principle.