And which of you by worrying can add a day to his life’s span?
“Behold, You have made my days like hand widths, And my lifetime as nothing in Your sight; Certainly all mankind standing is a mere breath. Selah
Nor shall you take an oath by your head, for you cannot make a single hair white or black.
And which of you by worrying can add a single day to his life’s span?
Therefore if you cannot do even a very little thing, why do you worry about the other things?
Zaccheus was trying to see who Jesus was, and he was unable due to the crowd, because he was short in stature.