Peter Remembers

Et recordatus est Petrus verbi quod dixerat ei Jesus: Priusquam gallus cantet bis, ter me negabis. Et coepit flere. Quia tunc tempus fuit de misericordia Petrum respicere, et ideo dicitur quod conversus Dominus respexit Petrum respectu suae misericordiae. Miserere nostri Deus omnium et respice nos, et ostende nobis lucem miserationum tuarum. Et ad respectum divinae misericordiae, recordatus est Petrus, haec enim recordatio veritatis significatur. Evasi ego solus ut nuntiarem tibi. Verbi quod dixerat ei Iesus futurorum praescius. Deus qui in malis sic praescit et praedicit: ut non causet malum quod scit, sed admonitio est ad cavendum. Admones ut relicta malitia credant in te Domine. Prius quam gallus cantet bis hoc enim verbum fuit ad refraenandam praesumptionem Petri. Ter me negabis. Et non erit eius populus qui eum negaturus est. Et coepit flere, ut flendo dilueret maculas quas negando contraxit. Lacrymis meis stratum meum rigabo. Egressus foras flevit amare. Ut amaritudo referatur ad cordis compunctionem: fletus autem ad commissi delicti verecundam recognitionem: et egressus ad operis mali et pravae societatis derelictionem. Luctum unigeniti fac tibi planctum amarum. Sanctus Albertus Magnus Commentarium In Evangelium Divi Marci, Caput XIV Source: Here p117

And Peter remembered the word Jesus had spoken to him: 'Before the cock crows twice you shall deny me three times.' And he began to weep. 1 Because then was the time to look on Peter with mercy, therefore it is said that 'the Lord turned and looked down on Peter,' 2 and with the look of pity. 'Be merciful to us, Lord of all things, and look down on us and show to us the light of your mercies.' 3 And with the look of Divine pity 'Peter remembered', and this signifies the remembrance of the truth. 'I alone have escaped to tell you.' 4 The word Jesus had spoken to him was prescient of the future. God who foreknows and foretells evils, does not cause the evil He knows, but it is a warning to be wary. 'You warn them to forsake wickedness and trust in you, O Lord.' 5 'Before the cock crows twice.' This was the word to bridle the presumption of Peter. 'You will deny me three times.' 'The people will deny Him and not be His.' 6 'And he began to weep,' that with weeping he might wash away the stains which his denials had contracted. 'With my tears I watered my bed.' 7 'Going outside he wept.' 8 The bitterness indicates compunction of heart, the tears the shameful recognition of the evil committed, and the going outside his abandonment of the evil deed and depraved company. 'Make lament for an only son with a bitter cry.' 9 Saint Albert The Great, Commentary On The Gospel of St Mark, Chapter 14 1 Mk 14.72 2 Lk 22.61 3 Sirach 36.1 4 Job 1.15 5 Wisd 12.2 6 Dan 9.26 7 Ps 6.7 8 Lk 22.62 9 Jerem 6.26