The text of the Constitution is a kind of super-statute, and so must be interpreted by the traditions of the civil law. Instead, attention to past cases now dwarfs attention to the actual text. Abandon, or severely limit, stare decisis. Focus on actual wording of the Constitution, taken as a whole.
Legislature makes, judges interpret and apply, executive enforces the law.
Laws are orders issued by legislatures. Lawmaking is a kind of communication of intentions. Lawmaking is a performative act. When legislatures pass a law, it is the text only, which they thereby establish as a standard. Their intentions are irrelevant.