Bhagavad Gita 9.30 · Krishna
Even the worst can turn
अपि चेत्सुदुराचारो भजते मामनन्यभाक्।
साधुरेव स मन्तव्यः सम्यग्व्यवसितो हि सः॥
api cetsudurācāro bhajate māmananyabhāksādhureva sa mantavyaḥ samyagvyavasito hi saḥ
Even someone of very wrong conduct, if they love Me with undivided heart, should be seen as good, for they have resolved rightly.
What it means
Krishna offers radical grace. Even someone whose past conduct has been terrible, if they turn to him with undivided devotion, should be seen as good. Why? Because they've made the right resolve. What matters most is the direction they're facing now, not where they've been.
The story
The Indian tradition tells of Valmiki, a robber who became the great sage-poet of the Ramayana. Krishna is describing exactly that kind of turning. No past is final.
In your life
Imagine someone who did serious harm and now spends every day trying to make amends. Judge people by their direction, not only their history. Including yourself.
Judge by the turning, not the past.