What role do the Father, Son, and Holy Spirit play in salvation?

In the doctrine of salvation, each person of the Trinity plays a distinct and vital role. The Father chooses whom He will save (Ephesians 1:4), the Son's redemptive work is completed through His sacrificial death (1 Peter 1:2), and the Holy Spirit sanctifies the elect, preparing them for faith and obedience (1 Thessalonians 5:23). This collective engagement not only highlights God's sovereign grace but also affirms that salvation is wholly dependent on Him. It counters the misconception of a cooperative salvation, illustrating that God's work in each believer is comprehensive and unyielding.