How does God call His people out of darkness?

In 1 Peter 2:9, believers are described as those 'called out of darkness into His marvelous light.' This divine calling is not merely an external appeal but an internal, effectual work of the Holy Spirit that brings about spiritual awakening and regeneration. Before their calling, individuals are in a state of ignorance, unaware of their sin and separation from God. Through the powerful operation of the Holy Spirit, they are enlightened to the truth of the Gospel, bringing them into the light of Christ, which marks a significant turning point in their lives characterized by faith and repentance.