'Observation' in the Bible

And Yahweh charged me at that time to teach you rules and regulations {for your observation of them} in the land that you [are] {about to cross into} to take possession of it.

But the chiefs of the children of Ammon said to Hanun their lord, Does it seem to you that David is honouring your father by sending comforters to you? has he not sent his servants to go through the town and make secret observation of it, and overcome it?

But the chiefs of the children of Ammon said to Hanun, Does it seem to you that David is honouring your father, by sending comforters to you? is it not clear that these men have only come to go through the land and to make secret observation of it so that they may overcome it?

When the men of Judah arrived at the observation post overlooking the desert and looked at the huge army, they saw dead bodies on the ground; there were no survivors!

I will stand at my guard postAnd station myself on the tower;And I will keep watch to see what He will say to me,And what answer I will give [as His spokesman] when I am reproved.