'Be Careful' in the Bible

For he shall be as a tree planted by the waters, and that spreadeth out her roots by the river, and shall not see when heat cometh, but her leaf shall be green; and shall not be careful in the year of drought, neither shall cease from yielding fruit.

This is what the LORD says: "Be careful! On the Sabbath day, don't carry any load or bring anything through the gates of Jerusalem.