Simply not enough information (given the loss of positional context) to say what this scene represents. The head of the central figure is another example of the work of the 'smiling face' restorer (possibly Steinheil) who also supplied the head of Pharaoh in panel 13 and various heads in other windows. On balance, the absence of a halo from this panel means it is more likely to be from Exodus rather than the life of St Blaise.