How did the covenant with Abraham differ from the later covenant made through Moses?

The covenant with Abraham and the later covenant made through Moses differ significantly in their structure, purpose, and requirements.

The covenant with Abraham is primarily defined by God’s unconditional promise to provide him with land and innumerable descendants. This relationship established Abraham as the ancestor of a people, and the ritual of circumcision was instituted as the sign of this covenant, obligating his male descendants to the promise.123

In contrast, the Sinai covenant mediated through Moses is a conditional agreement between God and the entire nation of Israel. While it builds upon the foundation of the Abrahamic promise, it functions as a formal legal and ethical framework. Its terms include the Ten Commandments and the Book of the Covenant, which prescribe specific ritual, civil, and ethical laws. Under this covenant, the Israelites’ status as God’s "treasured possession" and "holy nation" is contingent upon their obedience to these divine laws.4

While the Abrahamic covenant emphasizes lineage and promise, the Mosaic covenant emphasizes the community's ongoing obligation to live according to God's revealed law.24