How does God preserve His people according to Scripture?

Scripture teaches that God's preservation of His people is a continuous and sovereign act. In Psalm 121, it mentions that 'the Lord shall preserve thee from all evil', which implies that He not only guards us from external dangers but also from the internal struggle of sin. This preserving work is evident through the Holy Spirit, who grants His people the power to believe and to trust in Christ. The assurance of being kept by God provides peace knowing that our salvation is secure in His hands, emphasizing the Reformed doctrine of perseverance of the saints.