'Idea' in the Bible

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.

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.

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?