The Priesthood Covenant is the covenant that God made with Aaron and his descendants, the Aaron priesthood, as found in the Hebrew Bible and the Oral Torah. The Hebrew Bible also mentions another perpetual priestly promise with Phinehas and his descendants.   Third, the New Covenant is the Gospel, and that is really good news. In a way, this statement is only a repetition of the first two points (above). There are a number of ways to represent the gospel. More recently, the “Four Laws of the Clergy” have played a decisive role in men`s participation in faith in Jesus. Some, like me, prefer the approach, sometimes known as the “Roman Road”.. It is a brief retrospective of the presentation of the Gospel that Paul deploys in the Book of Romans. But we could also present the Gospel very clearly by simply reliving the promises (and assumptions) of the New Covenant: the old covenant was a solemn agreement between God and the Jewish Abraham Partiarchabraham (cf. Genesis 17:1-14).
In this covenant, God promised to bless the descendants of Abraham and to be their God and protector when they arrived in the land of Canaan. In return, the Jews promised to be faithful to God and not worship other gods. As a sign of the United, all Jewish males should be circumcised. The promises encased by patriarchal covenants (which established God with Abraham, Isaac and Jacob) are recorded in Gen 12:1-3. The essence of these divine promises is that God would bless Abraham in two ways: (1) God would make him a great nation, thus making his name great, and (2) through him God would pass on the blessing to others (i.e. to all the peoples of the earth). Some Christians claim [who?] that there are many other passages that speak of the same New Covenant, without using this precise formulation. In some places, it is referred to as a “peace alliance”, others use other constructions; some simply say “alliance,” but the context may imply that it is the New Covenant; and some claim metaphorical descriptions, for example, that Mount Zion is really a metaphor for the New Covenant. 14 For we know that the law is spiritual, but I am inspirable, sold to slavery to sin. 15 Because I don`t understand what I`m doing.
Because I don`t do what I want, I do what I hate. 16 But if I do what I don`t want to do, I agree that the law is good. 17 Now I no longer do it, but the sin that lives in me. 18 For I know that there is nothing good in me, that is, in my flesh.