what does 'talk the talk' and 'walk the walk' mean? Where they come from? Any etymology?

Answer 1

According to Cassell's Dictionary of Slang it is a US Black expression from the 1960s and is a phrase of encouragement for one's verbal skills. It is nothing whatsoever to do with Christianity as one answer suggests.

Answer 2

It means saying it is one thing but actually doing it is another
eg: Don`t talk the talk if you can`t walk the walk
So talking is much easier and walking requires more effort
And so goes the old saying... actions speaks louder than words

Answer 3

It stems from Christian based theology concerning "Walking the path" -- i.e. the "Path walked by The Savior Jesus Christ the Messiah" -- or "living the virtuous life in the similitude of Christ" [living in heart and deed as He taught]
The colloquial phrase in English became: "Walk the walk" as referring to "THE" walk or Life of Christ as instructed. Hypocrisy -- a common sin of
mankind -- saw those who "Spoke of or taught of or told others to do" the
things of Christ, but those things were NOT SEEN in the lives of these tellers
who were hypocrites. Thus, the term developed: They "TALK the talk", but they
DO NOT "Walk the walk".
TODAY, in our English speaking culture it has become VERY generalized to
simply mean "about ANY subject were the same principle applies" . Talking
about how to and doing homework, but not doing. Or painting a house, driving an auto "by the book", or building something right, etc etc etc etc etc
Hope this helped you

Answer 4

it means , you can talk a dam good fight.( talk the talk) but when push comes to shove, can you actually knock em dead. (walk the walk)