Well, I don't see any real answers so far..So..God's covenant with Judaism is the 2nd covenant between God and humans...it's detailed in Gen. Chp.17....'My covenant with you is this...you are to become the father of a host nations...I shall maintain my covenant with you and your descendants throughout the ages as an everlasting pact'....(It's renewed with Moses and further detailed in the Book of Exodus where the Israelites are to obey and follow God).
God's '1st covenant' with humans can be found in Gen.8 where God promises to Noah to be the God of all people and all life and never destroy it all, despite peoples mistakes or sins.
Christianity believes that Jesus is the Jewish Messiah and the 'Christ' or 'savior' of all mankind, and makes the '3rd' installment of the covenant....gifting to humans, everlasting life after death in return for following the teachings of Jesus.