How is the concept of justification described in terms of its occurrence?

Justification in Christian theology is understood as a legal declaration by God that a sinner is no longer considered guilty and is instead righteous in His sight. This act occurs at the moment of spiritual new birth, a transformative experience often associated with faith in Jesus Christ. It signifies that through belief in Christ's sacrificial death and resurrection, individuals are instantaneously reconciled with God and receive forgiveness for their sins.

This instant declaration contrasts with concepts like gradual processes or progressive growth, which apply more to sanctification—another aspect of the Christian life that involves the ongoing work of the Holy Spirit in a believer's life post-conversion. Justification, however, is not a process but rather a one-time event that establishes one's standing before God. Therefore, it is specifically linked to the moment one accepts Christ and is born anew spiritually, marking the start of their relationship with God.