Isaiah 12:1-2

Humbled beyond measure, filled to the brim with gratitude and full of His mercy and grace in Christ Jesus...this is how I feel after His cleansing in my life. I praise you Father, Son and Holy Spirit!

The first you is singular, representing the remnant as an individual. The anger of God had caused the people to be dispersed among the nations; His grace would lead to their regathering.

ah, the Lord, by its repetition, emphasizes that Israel’s covenant-keeping God—and not the nations—brings salvation 

Isaiah 12:1-2

12 And in that day you will say: 

“O Lord, I will praise You; 

Though You were angry with me, 

Your anger is turned away, and You comfort me. 

² Behold, God is my salvation, 

I will trust and not be afraid; 

‘For Yah, the Lord, is my strength and song; 

He also has become my salvation.’ ”