'Idea' in the Bible

So Saul said to his servant, "That's a good idea! Come on. Let's go." So they went to the town where the man of God was.

And Ahijah, the son of Ahitub, brother of Ichabod, the son of Phinehas, the son of Eli, the priest of the Lord in Shiloh, who had the ephod. And the people had no idea that Jonathan had gone.

And when Saul saw David going out against the Philistine, he said to Abner, the captain of the army, Abner, whose son is this young man? And Abner said, On your life, O king, I have no idea.

Saul's daughter Michal loved David. Saul was informed of this and he liked the idea.

But David took his oath again and said, Your father sees that I am dear to you; so he says to himself, Let Jonathan have no idea of this, for it will be a grief to him; but as the Lord is living, and as your soul is living, there is only a step between me and death.

But the boy had no idea what was going on; only Jonathan and David had knowledge of it.

Was today the first time I inquired of God for him? Of course not! Please don’t let the king make an accusation against your servant or any of my father’s household, for your servant didn’t have any idea about all this.”

Am I to take my bread and my wine and the meat I have got ready for my wool-cutters and give it to men coming from I have no idea where?