'Be Careful' in the Bible

"[So] you must be careful to do [just] as Yahweh your God commanded you; you shall not turn [to the] right or [to the] left.

And you shall hear, Israel, and be careful to observe [these instructions], so that {it may go well for you} and that you may multiply greatly, [just] as Yahweh, the God of your ancestors, {promised} you, [in] a land with milk and honey.

{Be careful to obey} all these things that I [am] commanding you, so that {it will go well} for you and for your children after you {forever}, because then you will [be] doing what is good and right in the eyes of Yahweh your God.