Isa 12:2

12:2 God is my salvation. See Ex. 15:2. He is the source and the initiator of salvation (49:6, 8; 51:6, 8; 56:1; 62:1).

the Lord God. The double reference to the name of the Lord is a poetic emphasis on the certainty of salvation provided by Yahweh, the covenant God (Ex. 3:15).