"O Mensch, bewein' dein' Sünde groß" (O man, bewail thy sin so great) is a Lutheran Passion hymn with a text written by Sebald Heyden in 1530.

The lyrics were written for an older melody, "Es sind doch selig alle, die im rechten Glauben wandeln" (Zahn No. 8303).

[2] It reflects the Passion, narrating the Stations of the Cross and adding the context of Heilsbedeutung (meaning for salvation), beginning with man's sinful condition and ending with thanks.

The first stanza opens addressing the listener "O Mensch" (O human being) and requesting him to remember and deplore his great sin (Sünde groß).

The following lines state that Jesus Christ left his Father's bosom, came to Earth (kam auf Erden), born of a virgin for us (für uns), wanting to become a mediator (Mittler).