A covenant is a contract, an agreement, between two parties. When God is one of those parties, it is a very serious contract, a sacred agreement. God looked at the Old Covenant as a marriage contract between Himself and Israel. Through the prophet Jeremiah, He tells Israel, I am married to you. He considered Israel to be His wife. Almost a millennium after the covenant's ratification, Jeremiah quotes God as He remembers the events of Mount Sinai: the kindness of your youth, the love of your betrothal, when you went after Me in the wilderness. In Ezekiel, God connects the Old Covenant with marriage, reminding Israel that He owns the land and therefore has the power to make good His promises. God demands Israel's loyalty, its commitment to obey His voice. His expectation is for Israel to be faithful to the terms of the covenant. With the words My voice, God refers to the Ten Commandments, which He spoke from Mount Sinai, as well as to the statutes and judgments recorded in Exodus and Leviticus. God reiterates His requirement for obedience, speaking of the Angel He will place before Israel.

A covenant, in the biblical sense, is a significant agreement that shapes mankind's relationship with God. It differs from social or business agreements in its divine purpose and scope. The Old Covenant, as referenced in historical contexts like the time of Ezra and the return from Babylonian exile, was made with the people of Israel and is now considered obsolete, as stated in Hebrews 8. Despite this, God's commandments associated with the covenant are described as standing fast forever and ever, indicating their enduring nature, particularly in connection with the New Covenant, which is prophesied to last without end. The New Covenant, foretold in Jeremiah 31:31 and reiterated in Hebrews 8:10-12, addresses the faults of the Old Covenant, which lay not in its laws but in the people who failed to keep its terms. Unlike the Old Covenant, the New Covenant promises that God's laws will be written on the hearts of those who enter it, ensuring a personal relationship with Him, access for all without distinction of class or rank, and the forgiveness of sins. These elements mark significant improvements over the Old Covenant, focusing on quality rather than merely time, as illustrated by the Greek term "kaine," which emphasizes betterment when comparing covenants of the same kind. There is a distinction between a covenant and a testament. A covenant is an agreement between two parties, while a testament, or "diatheke" in Greek, is a unilateral declaration, akin to a will, emphasizing what God has done on His own to favor those involved in the covenant. This unilateral action by God, such as giving His Son, granting grace, providing access in prayer, and empowering through His Spirit, tips the scales in favor of those under the New Covenant, ensuring they have the means to uphold their part. The New Covenant, while entered into through belief, repentance, baptism, and receiving God's Spirit, is not yet completed. It remains in a preparatory stage, likened to an espousal or engagement, where adjustments are made to conform to Christ, who is already perfect. The completion of the New Covenant will occur at Christ's return, when it will be made with spiritual Israelites who have God's law indelibly written in their hearts and minds, forming a perfect union with Him in marriage, as depicted in Revelation 19. Until then, the responsibility is to grow, overcome, and be sanctified in preparation for this ultimate fulfillment.

The Abrahamic Covenant stands as a distinct agreement made by God with Abraham and his descendants, promising countless offspring and a lasting relationship. It was not altered or added to by subsequent covenants but remains in effect with its promises still binding. The Old Covenant, introduced later, was an additional and separate covenant, not appended to the Abrahamic Covenant, but designed to work alongside it as a temporary measure. Established because of Israel's transgressions, it served as a guide in civil and religious matters until the promised Seed, Christ, should come. It acted as a bridge from the Abrahamic Covenant to the arrival of Christ, preparing Israel for the next phase of God's plan, but it lacked the power to give life or provide justification, holding people in custody under the penalty of sin. The Sabbath Covenant, another distinct agreement, identifies the Sabbath as the sign of God's people and stands separately alongside the Old Covenant. The Old Covenant, now obsolete since Christ's coming, fulfilled its purpose as a guardian and guide, revealing the need for a Savior but unable to deliver from sin's bondage. It was never intended to save but to lead to Christ, after which its custodial role ended. The New Covenant, proposed by Christ, expands God's purpose beyond Abraham's physical descendants to include all peoples on earth. It builds upon the foundation of the Abrahamic Covenant, incorporating God's laws written in the heart, and offers freedom from sin through justification by faith in Christ's sacrifice. Unlike the Old Covenant, which produced bondage to sin and death due to its lack of provision for forgiveness, the New Covenant brings liberty and life, aligning with God's eternal plan to draw all into His Family. Those under this covenant become Abraham's seed and heirs to the promises through faith in Christ, regardless of their physical lineage.

Covenants are formal agreements that specify terms and conditions for completing a project. All contracts and covenants are essentially the same at their core. Even the divine covenants contain these elements to one degree or another and are just as formal and legally binding as any business contract or treaty between nations. The Adamic covenant, the Noachian covenant, the Abrahamic covenant, the Sabbath covenant, the Old Covenant, and the New Covenant all include parties, terms, rewards for compliance, and penalties for noncompliance. Covenants with God have profound spiritual and eternal consequences. The Old Covenant was doomed from the beginning because of a fault with the people of Israel. God found fault with them because they did not have what it took to fulfill their part of the bargain. The Abrahamic covenant is the model of the New Covenant. Its terms required Abraham to walk before God and be blameless. This standard presupposes laws and principles that are God's requirements. The covenant required a relationship with God that included obedience to His voice. Circumcision was the sign of the Abrahamic covenant. It was a separate covenant within the greater covenant. Every male child was to be circumcised at eight days old. The uncircumcised male child was cut off from his people and had broken the covenant. The prelude to the Old Covenant appears in Exodus 19. God set out the parties of the covenant and the basic terms. Israel's part was to obey His voice and keep His covenant. God's part was to regard them as His special treasure, make them a kingdom of priests, and make them a holy nation. The people answered that all the Lord had spoken they would do. The Ten Commandments in Exodus 20 form the preamble to the Old Covenant. These laws were already in effect before the covenant and remain eternal. The specific terms of the covenant appear from Exodus 20:22 through Exodus 23:19. They are ordinances that prescribed proper interactions between people and included laws governing worship of God. God's promises within the covenant appear in Exodus 23:20-33. They include protection from enemies, abundant food and water, healing, fertility, long life, and possession of the land. The covenant was formally ratified in Exodus 24 with blood from burnt and peace offerings. The people again affirmed that all the Lord had spoken they would do and be obedient. The covenant bound God and Israel together to complete the project of forming Israel into a holy kingdom of priests.