And the second time the cock crowed. And Peter called to mind the word that Jesus said unto him,
Before the cock crows twice, you shall deny me three times.
And when he thought on this, he wept.
All Commentaries on Mark 14:72 Go To Mark 14
Augustine of Hippo
AD 430
As holy David repented for his deadly crimes and still retained his kingship, so the blessed Peter earnestly repented, having denied the Lord, and shed such bitter tears, yet remained an apostle. Letter , To Boniface.