Why is remembering Christ's sacrifice important?

In 2 Peter, Peter emphasizes the criticality of remembering Christ's sacrificial work, as forgetting it leads to spiritual blindness. He notes that when believers focus on their own efforts rather than Christ’s finished work, they risk falling into error. Christ’s declaration, 'It is finished,' assures believers that their sins are atoned for completely. This remembrance leads to a deeper appreciation of God's grace and empowers believers to live in the light of their salvation, preventing them from being swayed by false teachings.