'Know' in the Bible

Now Samuel did not yet know the Lord; the word of the Lord had not yet been revealed to him.

But keep an eye on it. If it should go up by the way of its own border to Beth Shemesh, then he has brought this great calamity on us. But if that is not the case, then we will know that it was not his hand that struck us; rather, it just happened to us by accident."

Then one day Jonathan son of Saul said to his armor bearer, "Come on, let's go over to the Philistine garrison that is opposite us." But he did not let his father know.

and all this assembly will know that it is not by sword or spear that the Lord saves! For the battle is the Lord's, and he will deliver you into our hand."

Now as Saul watched David going out to fight the Philistine, he asked Abner, the general in command of the army, "Whose son is this young man, Abner?" Abner replied, "As surely as you live, O king, I don't know."

I will go out and stand beside my father in the field where you are. I will speak about you to my father. When I find out what the problem is, I will let you know."

Taking an oath, David again said, "Your father is very much aware of the fact that I have found favor with you, and he has thought, 'Don't let Jonathan know about this, or he will be upset.' But as surely as the Lord lives and you live, there is about one step between me and death!"

Jonathan said to David, "The Lord God of Israel is my witness. I will feel out my father about this time the day after tomorrow. If he is favorably inclined toward David, will I not then send word to you and let you know?

But if my father intends to do you harm, may the Lord do all this and more to Jonathan, if I don't let you know and send word to you so you can go safely on your way. May the Lord be with you, as he was with my father.

David replied to Ahimelech the priest, "The king instructed me to do something, but he said to me, 'Don't let anyone know the reason I am sending you or the instructions I have given you.' I have told my soldiers to wait at a certain place.

Then David went from there to Mizpah in Moab, where he said to the king of Moab, "Please let my father and mother stay with you until I know what God is going to do for me."

Should I take my bread and my water and my meat that I have slaughtered for my shearers and give them to these men? I don't even know where they came from!"

David replied to Achish, "That being the case, you will come to know what your servant can do!" Achish said to David, "Then I will make you my bodyguard from now on."