NOTES for Isa 12:1-2
The Genesis reading is preceded by the Lord's promise not to destroy the earth and every living thing. And Isaiah's words "You were angry with me, but You turned away Your anger and comforted me" precede the coming of Christ. Comfort for people lies in Salvation and the path of Resurrection, and everything will be resolved on the day of Judgment.
And in Proverbs we find the words: "The blessing of the Lord makes rich, and He adds no sorrow with it". The Lord blessed us for life, for work, for happiness. But with Him and in Him, in His blessing. The whole world is now saved only through Christ and judged through our deeds.
And as the Lord restored the world after the flood, so through the Church and Christ each person will be restored. And each receives the whole world and bears his own burden of responsibility before the Lord.