'Unaware' in the Bible

Then Joab left David and sent messengers after Abner. They brought him back from the well of Sirah, but David was unaware of it.

One went out to the field to gather herbs and found a wild vine from which he gathered as many wild gourds as his garment would hold. Then he came back and cut them up into the pot of stew, but they were unaware of what they were.

If his sons receive honor, he does not know it;if they become insignificant, he is unaware of it.

Everyone who has a treaty with youwill drive you to the border;everyone at peace with youwill deceive and conquer you.Those who eat your breadwill set a trap for you.He will be unaware of it.