Cross reference
Luke 12:25
25 And which of you by being anxious can add a cubit unto the measure of his life?
Matthew 5:36
36 Neither shalt thou swear by thy head, for thou canst not make one hair white or black.
Matthew 6:27
27 And which of you by being anxious can add one cubit unto the measure of his life?
Luke 19:3
3 And he sought to see Jesus who he was; and could not for the crowd, because he was little of stature.