In both cases the mosaic covenant and the Davidic covenant are covenants that God himself initiates and are invested in. They both communicate a message of relationship to God, and share what becomes our understanding of Grace, Justice, and Love. The Davidic covenant is a promissory type while the mosaic covenant is an obligatory type. The promises from God are given freely with no stipulations for David; while with Moses there are very serious regulations and rules around the conditions of covenant. In the mosaic covenant there is an exchange: if you do this, then I will do this. In exchange for your actions of this, I will in return do that, a quid quo pro perhaps. It’s about what the vassal does or gives, in order to receive and validate
