What is a Covenant?
Covenant is from the Hebrew [ber-eeth] meaning to cut, and by extension means a promise or pledge to do something. "It is an agreement upon the promises concerning the relationship between two or more parties. In Biblical terms the covenant is the prime agency of God's self-revelation in history. God reveals Himself to be the covenant God. The essence of the covenant between God and man is "I will be your God, and you will be My people." The probationary covenant of life by which man was to keep God's commandments perfectly was ultimately and consummately fulfilled by Christ, God in the flesh. The covenant of grace is that by which God's elect are attributed Christ's satisfaction by faith. An understanding of the covenant is central to understanding the history of redemption. Covenant theology is that system of theology which recognizes the successive covenants of Scripture as a unity, and the means by which God orders His creation and brings about redemption for His elect." (From Biblical Theology and Redemptive Historical Hermeneutics)
Economy of the Covenants Between God and Man 2 Vol
by Herman Witsius
Christ of the Covenants
by O. Palmer Robertson
Sacred Bond: Covenant Theology Explored
by Michael Brown and Zach Keele