How do we know the Holy Spirit is also the Spirit of Christ?

In the Scriptures, particularly in Revelation and the teachings of Jesus in the Gospels, we see that the Holy Spirit is intimately connected with Christ. Jesus Himself promised the coming of the Comforter, indicating that the Spirit would not speak of Himself but testify of Christ. This underscores that the Holy Spirit is the means through which Christ’s presence is experienced and understood by believers. The unity of Christ and the Spirit is essential; they are manifestations of the same divine reality who engages with His people.