'Reason' in the Bible

And keep in mind that you were a servant in the land of Egypt, and that the Lord your God took you out of that land by his strong hand and his stretched-out arm: for this reason the Lord has given you orders to keep the Sabbath day.

And when your son says to you in time to come, What is the reason for these rules and laws and decisions which the Lord our God has given you?

For this reason Levi has no part or heritage for himself among his brothers: the Lord is his heritage, as the Lord your God said to him.)

Truly all the nations will say, Why has the Lord done so to this land? what is the reason for this great and burning wrath?