For what is your life? It is a mist that appears for a brief time, and afterwards will vanish away. So what you ought to say is: "If the Lord wills," or, "If we live," we will do this or that
Other versions
King James Version
For that ye ought to say, If the Lord will, we shall live, and do this, or that.English Standard Version
Instead you ought to say, "If the Lord wills, we will live and do this or that."New International Version
Instead, you ought to say, "If it is the Lord's will, we will live and do this or that."