Isaiah tells us that he heard the voice of Jehovah, and Paul tells us that Isaiah heard the voice of God the Holy Spirit.
JER 31:31-34“Behold, days are coming,” declares the Lord, “when I will make a new covenant with the house of Israel and with the house of Judah,not like the covenant which I made with their fathers in the day I took them by the hand to bring them out of the land of Egypt, My covenant which they broke, although I was a husband to them,” declares the Lord. “But this is the covenant which I will make with the house of Israel after those days,” declares the Lord, “I will put My law within them, and on their heart I will write it; and I will be their God, and they shall be My people. And they shall not teach again, each man his neighbor and each man his brother, saying, ‘Know the Lord,’ for they shall all know Me, from the least of them to the greatest of them,” declares the Lord, “for I will forgive their iniquity, and their sin I will remember no more.”
HEB 10:15-17And the Holy Spirit also bears witness to us; for after saying,“This is the covenant that I will make with them after those days, says the Lord: I will put My laws upon their heart, and upon their mind I will write them,” He then says,“And their sins and their lawless deeds I will remember no more.” [Notice again that the Holy Spirit (HEB 10:15) and Jehovah (JER 31:31) are the same Person.]
The Holy Spirit’s Divine Attributes
Certain divine attributes are ascribed to the Holy Spirit emphasizing His deity. Scripture teaches that the Holy Spirit possesses all the characteristics that belong to deity. In fact, the Bible never refers to Him in any other manner than that which must be construed as deity. Although every attribute of God is ascribed to the Holy Spirit as fully and freely as to the Father or the Son, we will only highlight several of these.
Omniscience. It makes perfect sense that if the Holy Spirit knows the deep things of God, everything else would be known to Him, including the thoughts and intents of men.
1CO 2:10-11For to us God revealed them through the Spirit; for the Spirit searches all things, even the depths of God. For who among men knows the thoughts of a man except the spirit of the man, which is in him? Even so the thoughts of God no one knows except the Spirit of God.
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