"We deeply regret ..."

Lutherans and Catholics often focused on what separated them from each other rather than looking for what united them. They accepted that the Gospel was mixed with the political and economic interests of those in power. Their failures resulted in the deaths of hundreds of thousands of people. Families were torn apart, people imprisoned and tortured, wars fought and religion and faith misused. Human beings suffered and the credibility of the Gospel was undermined with consequences that still impact us today. We deeply regret the evil things that Catholics and Lutherans have mutually done to each other.

Source: Common Prayer (Lutheran-Catholic) - Common Prayer, p. 14, From Conflict to Communion, Lutheran-Catholic Commemoration of the Reformation in 2017, https://www.lutheranworld.org/content/joint-common-prayer-lutheran-catholic-common-commemoration-reformation-2017