Themis was Zeus second wife, after Métis and before Hera. It is she who tempered Zeus's power with great wisdom and with her deep respect for natural laws. Being a titanid, its roots are instinctive and pre-Olympic and extends ahead to include a cosmic view of the final and essential operations of the entire universe.
In addition to being a wife and counselor, Themis is also a mentor to Zeus. In a myth she appears as a baby Zeus wet nurse, teaching him to respect justice. In the marriage of Zeus and Themis we see two forces, one solar and the other lunar, working together with few conflicts to be observed.
Zeus was the all-powerful, absolute king, an archetypal pattern that governs collective consciousness, which both creates and maintains a collectivity. But it is Themis, who, moving within various other archetypal patterns, destabilizes Zeus' absolutism and certainties. It moved in the opposite direction, never failing to include as much as possible. Themis therefore had a softening effect.
However, the marriage of the two was not in total sweet harmony, because although wisdom passed between them, the dictates of one and the other, always had a very high price, because nothing has a definitive solution.
In the image of Zeus consulting Themis, we can accept a good deal of exchange. Zeus is the one who rules and decides, while Themis assumes a softer attitude and gives his relativizing touch that comes from broader perspectives.