a contract or agreement between two parties. In the Old Testament the Hebrew word berith is always thus translated. Berith is derived from a root which means "to cut," and hence a covenant is a "cutting," with reference to the cutting or dividing of animals into two parts, and the contracting parties passing between them, in making a covenant ( Genesis 15 ; Jeremiah 34:18 Jeremiah 34:19 ).
The corresponding word in the New Testament Greek is diatheke , which is, however, rendered "testament" generally in the Authorized Version. It ought to be rendered, just as the word berith of the Old Testament, "covenant."
This word is used (1) of a covenant or compact between man and man ( Genesis 21:32 ), or between tribes or nations ( 1 Samuel 11:1 ; Joshua 9:6 Joshua 9:15 ). In entering into a convenant, Jehovah was solemnly called on to witness the transaction ( Genesis 31:50 ), and hence it was called a "covenant of the Lord" ( 1 Samuel 20:8 ). The marriage compact is called "the covenant of God" ( Proverbs 2:17 ), because the marriage was made in God's name. Wicked men are spoken of as acting as if they had made a "covenant with death" not to destroy them, or with hell not to devour them ( Isaiah 28:15 Isaiah 28:18 ).