What does it mean to be plunged in the blood of Christ?

Being plunged in the blood of Christ symbolizes the complete cleansing and redemption that believers receive through Christ's atoning sacrifice. Hebrews 9:22 states that without the shedding of blood, there is no forgiveness of sins. This imagery resonates deeply within the Reformed tradition, emphasizing that salvation is solely through Christ's work—a theme reflected in the sermon as believers are described as being 'washed in the blood' of the Lamb. It illustrates the Sovereign grace of God where He, through Christ, purifies us from all unrighteousness (1 John 1:7). When we are plunged into His blood, we are not just afforded pardon, but we are also made new creations in Him, receiving new life and a secure standing before God. This reinforces the foundational belief that our salvation rests entirely on Christ's merit, underscoring the doctrine of Sola Christus, Christ alone.