John Gill Commentary Luke 12:25

"And which of you by being anxious can add a cubit unto the measure of his life?" — Luke 12:25 (ASV)

And which of you with taking thought
In an anxious and distressing manner, for food and raiment, in order to preserve and continue life,

add to his stature one cubit ?
The Persic version reads, "to his stature and height", as if this referred to the height of stature; whereas it seems rather to regard the age of a man, and the continuance of his life; (See Gill on Matthew 6:27).