'Worry' in the Bible

He will be like a tree planted by water:it sends its roots out toward a stream,it doesn’t fear when heat comes,and its foliage remains green.It will not worry in a year of droughtor cease producing fruit.

The Lord spoke about Damascus. "The people of Hamath and Arpad will be dismayed because they have heard bad news. Their courage will melt away because of worry. Their hearts will not be able to rest.