Parashat Noach tells the story of God’s decision to destroy the earth with a flood because of the corruption and wickedness found in the world. Only Noach – the only righteous man on earth – his family, and a pair of every kind of creature on earth were to survive. Noach was told to build a large boat, the Ark, sufficient in size to accommodate the family and all the creatures. After the flood, those aboard the Ark started a new life on earth all over again, and God promised to Noach that never again a flood would be sent to destroy the entire earth.
Having saved Noach and his family, God enters into a new covenant with humanity. This includes the prohibition against eating live flesh (Genesis 9:4), the law against shedding another person’s blood (Genesis 9:6) and the instruction to be fruitful and multiply (Genesis 9:7). The rainbow is a reminder of the covenant which God entered into with Noach, not just for us, but also for God, who will see the rainbow: ‘And I will remember my covenant, which is between me and you and every living creature of all flesh’ (Genesis 9:15).