If you're preaching Sunday, you may want to consider this bit of ecumenical snark.
After dismissing the extra-Calvinisticum (since Ptolemaic cosmology has been replaced by Copernican) and intra-Lutheranum (since "ubiquity ... cannot be taken seriously"), George Lindbeck concludes:
In any case, given the modern mood and the advent of historical criticism, Lutherans are nowadays no more likely than Calvinists to deny that Jesus was fully human. The problem for both parties in our times is to maintain Christ's divinity.
Not sure we agree with either the analysis or the accusation, but we certainly take the challenge seriously.