It doesn’t do to gloss over the differences between the two accounts of creation in Genesis; one has to reconcile them, which is easy when one recognizes two gods, two creations, and that the two stories work together as one.
Prior to the Flood, there are two sets of instructions to Noah about how many animals to save; God tells him to gather two of each kind; Lord God tells him to take two of each, but 5 each of the livestock animals.
After the Flood, God promised Noah that he would never again destroy all flesh, giving us the rainbow as the mark of that covenant. As part of that covenant, he gave man all the animals as food, as well as all the plants. And then he bowed out of the picture, not appearing again; as Bette Midler said in song, “God is watching us-from a distance.”
Lord God made the covenant with Abraham and destroyed Sodom and Gomorrah, sending angels to warn Lot. The Lord got the children of Israel into Egypt, to save them from famine, and then got them out of slavery there. He gave Moses the Law at Sinai, saying first that Israel shall have no other god before him. He disallowed work on the Sabbath; restricted the animals that the children of Israel would be allowed to eat; created numerous health and hygiene rules; and set up the clan of Moses, the Levites, as the priesthood, with sacrifices to the Lord, fines for breaking the rules, to support them.
Jesus appears to be one who did not gloss over the two different creations; it’s possible that all of the Jews recognized both gods in those days, when polytheism was the norm. He speaks precisely by name when referring to the two gods. When the rich young man called him “Good Teacher,” he said, “Why do you call me good? There is none good but one; that is, God.” He was talking about the God of Genesis, who made everything in 6 days by the power of his word, and all he made was good.
But when asked, “Which is the greatest commandment in the Law?” he said, “The first of all the commandments is this: ‘Hear, O Israel, the Lord our God, the Lord is one. And you shall love the Lord your God with all your heart, and all your soul, and all your mind, and with all your strength.’ This is the first commandment. And the second, like it, is this: ‘You shall love your neighbor as yourself.’ There is no other commandment greater than these.”
Here, Jesus was talking about the Lord God of Israel, who made the covenant with Abraham, who took them out of Egypt and made them his holy people, and who is most certainly not good; he does and orders necessary evil. Loving one’s neighbor fulfills the Law by not harming anyone, and thus saves one from the wrath of the Lord.