God made the rainbow covenant after the flood of Noah. This meant that he will never cause a flood which will cover the whole world like he did to get rid of the evil people of the times
The covenant with Moses is already made and most religions hold that you cannot intercede with the Dead for a new covenant.
According to Jewish chronology, it was made in 1312 BCE.
Moses
The "covenant".
The b'rit (covenant) (Exodus 34:10, and many other verses).
The covenant between God and the Israelites, with Moses serving as messenger, was made on the 5th of Sivan (late spring/early summer), 1312 BCE. Non-traditional opinions may place it at an earlier date.See also:More about the Israelite covenant
In the Sinai Covenant, God made a covenant with the Israelites through Moses on Mount Sinai. The covenant included the giving of the Ten Commandments and other laws which the Israelites were to follow. It established rules for the Israelites to live by, and outlined the consequences for obedience and disobedience.
The second covenant was not made between God and Abraham. It was made between God & Moses at Mount Sinai. This is where the ten commandments originated.
Abraham made a covenant with God in which Canaan was promised to the Hebrew people as an everlasting possession. This covenant plays a significant role in the history and identity of the Jewish people.
Moses
The three major Jewish covenants are Noah's Covenant, Abraham's Covenant, the Mosaic Covenant (Moses' Covenant.)
The Ark of the Covenant was constructed at the command of God, as relayed to Moses in the biblical book of Exodus. It was designed to serve as a sacred container for the tablets of the Law given to Moses on Mount Sinai. The Israelites, under Moses' leadership, were instructed to build the Ark as a central symbol of their covenant with God during their journey through the wilderness.