Extra calvinisticum (Lat. "The Calvinistic beyond/outside") is a theological terminus technicus given by Lutheran theologians around 1620 to a Calvinistic Christology, which claimed that the Logos was also outside (literal meaning of the Latin extra) or beyond the physical body of Christ.[1] This theological distinction is most easily understood in contrast to Lutheran theology: with Martin Luther Jesus Christ is omnipresent, not only his divine nature but also his human nature, this is because the two natures cannot be separated from one another, but interpenetrate one another (communicatio idiomatum).[2]