'Worrying' in the Bible

"That's why I'm telling you to stop worrying about your life what you will eat or what you will drink or about your body what you will wear. Life is more than food, isn't it, and the body more than clothing?

Can any of you add a single cubit to his height by worrying?

But Martha was worrying about all the things she had to do, so she came to him and asked, "Lord, you do care that my sister has left me to do the work all by myself, don't you? Then tell her to help me."

Then Jesus told his disciples, "That's why I'm telling you to stop worrying about your life what you will eat or about your body what you will wear,

Can any of you add a cubit to his height by worrying?

And do not seek what you will eat and what you will drink, and do not keep worrying.