If omniscience was a requisite for angels, the angels of Genesis 19 wouldn't have asked Lot whether or not he had "anyone else [in his abode]...ons-in law, sons, daughters, or anyone...in the city" (v. 12, ESV). The angels would've already knew.
Some angels do have science to "know all things that are in the earth" (2 Sam. 14:20, KJV) though (otherwise the woman wouldn't have assimilated David's wisdom to an angel of God that has such knowledge).
Jope, I've never heard of anyone who has believed that angels are omniscient.
It's impossible. They aren't God.
Someone can correct me if I am wrong, but whenever we see in the Old Testament, phrases like "Angel of the LORD" or Angel of God" and this "angel" has characteristics OF God -
- then this is a reference TO God and and an angel like Gabriel or Michael.
Some at least, have knowledge of "all things that are in the earth" (2 Sam. 14:20, KJV). I suppose, that, since "heaven" isn't included in the passage, it can't be assumed that they have knowledge of all things that are in heaven.
So angels aren't necessarily omniscient of things in heaven, though some are omniscient of things that are in the earth.
If an angel is all knowing of things that happen in the earth, then he is omniscient (omni = all; science = knowledge) of things that happen in the earth.
No created being is omniscient. For at some point prior to their creation, something was unknowable. As a result only uncreated beings can be omniscient. Angels are created beings. God is uncreated. Only God can be omniscient, only God is omniscient. Angels are not omniscient as they fail to meet one of the basic conditions of being omniscient, that is being uncreated.
This is classical and accepted orthodoxy. You can't believe angels are omniscient.
Having knowledge of parts of creation or even acts in history does not equal omniscience.
Good gravy!!
I left out a very important word in my first post and it's too late to edit.
It should say NOT like Gabriel and Michael.
Jope, I've looked it up and I was correct.
"Angel of the LORD" and "Angel of God" is NOT in reference to a created angel.
Your 2 Samuel 14:20 reference is not talking about a created angel knowing all things.
It's in reference to God.
It doesn't mean that God is an angel, obviously.
But, in general term, and not in this passage, God has sent a message via a manifestation of Himself.
He did not speak to this woman - Joab told her what to say, as Tom said below.
Your passage is not supporting created angels as omniscient.
Whether Joab meant harm or foul, he was the "mouthpiece" of this woman and her telling David that he was as knowledgable as God in David's discovering her deceit .... in my opinion, she was buttering him up because he caught her in a lie and it scared her.