KJV - Whereas ye know not what shall be on the morrow. For what is your life? It is even a vapour, that appeareth for a little time, and then vanisheth away.
ASV - whereas ye know not what shall be on the morrow. What is your life? For ye are a vapor, that appeareth for a little time, and then vanisheth away.
BBE - When you are not certain what will take place tomorrow. What is your life? It is a mist, which is seen for a little time and then is gone.
WEB - Whereas you don't know what your life will be like tomorrow. For what is your life? For you are a vapor, that appears for a little time, and then vanishes away.
YLT - who do not know the thing of the morrow; for what is your life? for it is a vapour that is appearing for a little, and then is vanishing;