'Anxious' in the Bible

Jesus answered her, "Martha, Martha, you are anxious and troubled about many things,

When they bring you before the synagogues, the rulers, and the authorities, don't be anxious how or what you will answer, or what you will say;

He said to his disciples, "Therefore I tell you, don't be anxious for your life, what you will eat, nor yet for your body, what you will wear.

Which of you by being anxious can add a cubit to his height?

If then you aren't able to do even the least things, why are you anxious about the rest?

Don't seek what you will eat or what you will drink; neither be anxious.