What is the Biblical basis for the Oriental Orthodox belief in Miaphysitism?

The Oriental Orthodox Church holds to Miaphysitism—that in the person of Jesus Christ, divinity and humanity are united in one nature (mia physis) without separation, confusion, or change. This view differs from the Chalcedonian definition, which speaks of two distinct natures united in one person. What passages of Scripture are used by the Oriental Orthodox Church to support the doctrine of Miaphysitism?