Spirit in the Bible can mean 4 things; Breath, words, thoughts, and spiritual beings. So what spirit of the Lord? Which spirit of the Lord? So after looking and checking the Bible and fact checking, we can conclude that the spirit of the Lord here is a Angel, before you judge look at the proof: Angels are spirits: Hebrews 1:7,14 KJV And of the angels he saith, Who maketh his angels spirits, and his ministers a flame of fire. [14] Are they not all ministering spirits, sent forth to minister for them who shall be heirs of salvation? Spirits sent forth? Yep they often are considered hosts or ministers: Psalm 103:20-21 KJV Bless the LORD, ye his angels, that excel in strength, that do his commandments, hearkening unto the voice of his word. [21] Bless ye the LORD, all ye his hosts; ye ministers of his, that do his pleasure. He used a spirit to shape man then he breathed into him: Job 33:4 KJV The Spirit of God hath made me, and the breath of the Almighty hath given me life. He commands to create, that implies he is talking to other beings Psalm 148:5 KJV Let them praise the name of the LORD: for he commanded, and they were created. So seeing angels can be called spirits and they are sent from God shouldnāt we say Angel of the Lord instead of Spirit of the Lord? Well the Bible does that already: Hereās two spots: Exodus 3:2 KJV Andš the angel of the LORDš appeared unto him in a flame of fire out of the midst of a bush: and he looked, and, behold, the bush burned with fire, and the bush was not consumed. Acts 8:26,39 KJV Andš the angel of the Lordš spake unto Philip, saying, Arise, and go toward the south unto the way that goeth down from Jerusalem unto Gaza, which is desert. [39] And when they were come up out of the water, the šSpirit of the Lord caught away Philipš, that the eunuch saw him no more: and he went on his way rejoicing. āAngel of the Lordā vs āSpirit of the Lordā same thing. So the Angel of the lord went upon the face of the Deep. It was not the word or the breath or the mind of God is was a actual deity that descended from heaven in Genesis 1:2.