Bucer and Capito were called to the Diet of Augsburg by the envoys of Strasbourg, who were aware that Philipp Melanchthon was working on a Saxon Confession that would represent the Lutheran position.
[3] The original version of the confession contained the claim, probably authored by Capito, that "Christ the Lord is truly in the Supper and gives his true body truly to eat and his blood truly to drink, but especially to the spirit, through faith".
Even this was offensive to the Lutherans and at the insistence of Jakob Sturm and Matthis Pfarrer, the Strasbourg envoys, was watered down further.
For political reasons, the confession was abandoned in practice within a year of its adoption, when the four cities joined the Schmalkaldic League.
In 1536, the theologians of Strasbourg signed the Wittenberg Concord that brought the Lutheran and Reformed churches into alignment.