At the heart of this covenant is God’s promise of redemption. God has not only promised to redeem all who put their trust in Christ, but has sealed and confirmed that promise with a most holy vow. We serve and worship a God who has pledged Himself to our full redemption.
The basic structure of the relationship God has established with His people is the covenant. A covenant is usually thought of as a contract. While there surely are some similarities between covenants and contracts, there are also important differences. Both are binding agreements. Contracts are made from somewhat equal bargaining positions, and both parties are free not to sign the contract. A covenant is likewise an agreement. However, covenants in the Bible are not usually between equals. Rather, they follow a pattern common to the ancient Near East suzerain-vassal treaties. Suzerain-vassal treaties (as seen among the Hittite kings) were made between a conquering king and the conquered. There was no negotiation between the parties.
The first element of these covenants is the preamble, which lists the respective parties. Exodus 20:2 begins with “I am the Lord your God.” God is the suzerain; the people of Israel are the vassals. The second element is the historical prologue. This section lists what the suzerain (or Lord) has done to deserve loyalty, such as bringing the Hebrews out of slavery in Egypt. In theological terms, this is the section of grace. In the next section, the Lord lists what He will require of those He rules. In Exodus 20, these are the Ten Commandments. Each of the commandments were considered morally binding on the entire covenant community.