[Read: Hebrews 1-3]
Salvation & The Trinity
That salvation is a Triune work is plain to see from other places in Scripture that emphatically declare the roles and operations of the Father, the Son, and the Holy Spirit in their united work of saving men. And such is the case in Hebrews chapter 2, where we learn of (i.)the Father bearing witness to (ii.) the Son’s Gospel message by (iii.) the working of miracles by the Holy Spirit (vv.2-4). Christ walked among men and preached the message of repentance and forgiveness of sins, the Father bore witness to the veracity of His message by the Holy Spirit’s powerful outworking of miracles and wonders.
Our author’s Trinitarian emphasis, although rather explicit in these two verses, becomes more evident when we step back from the text and observe what is being presented to us in these opening three chapters. From the first three chapters, we can see the Three Persons of the Godhead interrelating in the work of salvation.
(a.)Chapters 1 and 2: The Father has elected the Son, appointing Him as the Lord of all and Savior of men. He also is the One from whom the Son has been sent.
(b.)Chapters 1 and 2:Christ is Eternal God, the Creator of all things, who has been chosen by the Father to bear the sins of His people.
Christ is also fully man, participating in our likeness in order that we may share in His likeness.
(c.)Chapter 3: The Holy Spirit is He who calls men to repentance by the ministry of the Word, and this is what He has always done.
We see, then, that Hebrews 2:2-4 gives us the doctrine of the Trinity in compact form emphasizing the roles and operations of the Three Persons of the Godhead as they function in unison to save men and glorify God.
 Cf. Ezekiel 37 and John 3, two passages that reflect one another in their very distinct Trinitarian emphasis on the roles and operations of the Father as the One who elects Christ as Savior and particular people to Himself, the Spirit who raises the dead by His sovereign power, and the Son who shepherds God’s people and rules over them in justice and mercy, these themes finding perfect fulfillment at the time of Christ’s time upon the earth and their exposition in His Words to Nicodemus in John 3:1-21. You can read my exposition of these passages in my blog entitled The Doctrine of the Trinity in the Book of Ezekiel.
 Cf. Heb 3:7-11. Note here, again, that it is YHWH who is speaking in the original text. The Holy Spirit is not identified as speaking in that Psalm, but He here, by the pen of the apostle, reveals that it was He who spoke these words by the mouth of the psalmist. Psalm 95, furthermore, does not speak in the present but points farther back to the time that Israel spent in the wilderness, where God had sworn that they would not enter into His rest. This text, therefore, proves the Divinity of the Holy Spirit very strongly.