'Really' in the Bible

If, however, you are [really] fulfilling the royal law according to the Scripture, “You shall love your neighbor as yourself [that is, if you have an unselfish concern for others and do things for their benefit]” you are doing well.

Yet you do not know [the least thing] about what may happen in your life tomorrow. [What is secure in your life?] You are merely a vapor [like a puff of smoke or a wisp of steam from a cooking pot] that is visible for a little while and then vanishes [into thin air].