Peter's denial, Soham by TheRevSteve
Peter’s denial, Soham, a photo by TheRevSteve on Flickr.

From the New Testament reading at Morning Prayer:

At that moment, while he was still speaking, the cock crowed. The Lord turned and looked at Peter. Then Peter remembered the word of the Lord, how he had said to him, ‘Before the cock crows today, you will deny me three times.’ And he went out and wept bitterly.
(Luke’s Gospel, chapter 22, verses 60-62, NRSV)

When the Lord turns and looks at us, why will we weep bitterly?

This glass is a section of the east window in Soham parish church.