Albert Barnes Commentary Hebrews 2:4

"God also bearing witness with them, both by signs and wonders, and by manifold powers, and by gifts of the Holy Spirit, according to his own will." — Hebrews 2:4 (ASV)

God also bearing them witness. This was by miracles, giving them the sanction of His authority or showing that they were sent by Him. No one can work a miracle by their own power. When the dead are raised, the deaf made to hear, and the blind to see by a word, it is the power of God alone that does it. He thus becomes a witness to the divine appointment of the person by whose agency the miracle is performed, or provides an attestation that what this person says is true. (See Barnes on Acts 14:3).

With signs and wonders. These words are usually connected in the New Testament. The word rendered signs sēmeion—means any miraculous event that is suited to show that what a prophet had predicted would certainly take place. (Matthew 12:38). (Compare to Barnes on Isaiah 7:1).

A wonder teras—denotes a portent or prodigy, something that is suited to excite wonder or amazement, and therefore a miracle. The words together refer to the various miracles that were performed by the Lord Jesus and His apostles, designed to confirm the truth of the Christian religion.

And with divers miracles. Various miracles—such as healing the sick, raising the dead, etc. The miracles were not of one class merely, but were varied, so that all pretense of deception would be removed.

And gifts of the Holy Ghost. The marginal reading is Distributions, referring to the various influences of the Holy Spirit enabling them to speak different languages and to perform works beyond human power. (See Barnes on 1 Corinthians 12:4–11).

According to His own will. As He chose. He acted as a sovereign in this. He gave them where He pleased and imparted them in such measure as He chose.

The sense of this whole passage is—"The gospel has been promulgated to humanity in a solemn manner. It was first published by the Lord of glory Himself. It was confirmed by the most impressive and solemn miracles. It is undoubtedly a revelation from heaven; it was given in more solemn circumstances than the law of Moses, and its threats are more to be dreaded than those of the law. Beware, therefore, that you do not trifle with it or disregard it. It cannot be neglected safely; its neglect or rejection must result in condemnation."