Covenant Characteristics in the Mutable Creation
In this context, the articulation of covenant characteristics will unambiguously locate any “real change” or “newness” outside God rather than in God. This means, simply, that covenant characteristics exist in the mutable creation, not in the immutable God. They do not suggest that God has a new, creaturely nature in the context of his relations ad extra. They do not exist in him essentially; and they do not exist in him in the context of his works and relations ad extra.
Matt Fortunato, Reconsidering Covenant Characteristics: A Study on God, Creation, and The Mediating Son, pg. 4-5