Yeast, a cellular model. Yeast is a simple living being that functions in practically the same way as human cells. It is an historical subject of fundamental research to understand cellular and genetic phenomena. It is a representative model of all eukaryotic cells.
Covenant. An agreement, contract, or written promise between two individuals that frequently constitutes a pledge to do or refrain from doing something. The individual making the promise or agreement is known as the covenantor, and the individual to whom such promise is made is called the covenantee.
Since the New Covenant involved the death of Jesus Christ, it can be called a testament. In modern usage, New Covenant and New Testament are interchangeable. However, the biblical concept of a covenant or agreement is the key element showing the continuity of Godâs relationship with human beings through the Old Covenant and the New Covenant. The Old Covenant between God and the nation of Israel was not a testament or will.