"Which of you by taking thought can add one cubit unto his stature?" Matthew 6:27 (KJV)
"And which of you by being anxious can add a single hour to his span of life?" Matthew 6:27 (ESV)
Our group has been memorizing this passage in KJV and ESV, and in this verse we come to the only place in our passage where the two disagree, and even then they only partly disagree. The ESV actually includes a footnote that says "Or a single cubit to his stature". The tradition of letting the English reader know when there are other possibilities is a one that goes all the way back to the 1611 KJV, but nevertheless in our primary translations these two passages disagree slightly so let's see why.