'Careful' in the Bible

Come on, let's be careful how we treat them, so that when they grow numerous, if a war breaks out they won't join our enemies, fight against us, and leave our land."

You are to set boundaries for the people all around: "Be very careful that you don't go up on the mountain or touch the side of it. Anyone who touches the mountain is certainly to be put to death.

"Be careful about everything I've told you, and don't mention the name of other gods. Don't let them be heard in your mouth!"

Be careful! Be sure to obey him. Don't rebel against him, because he won't forgive your transgression, since my Name is in him.

"Be very careful not to make a covenant with the inhabitants of the land to which you are going, so they won't be a snare among you.