being a double-minded man, unstable and restless in all his ways [in everything he thinks, feels, or decides].

Speak and act [consistently] as people who are going to be judged by the law of liberty [that moral law that frees obedient Christians from the bondage of sin].

Now if we put bits into the horses’ mouths to make them obey us, we guide their whole body as well.

Believers, do not speak against or slander one another. He who speaks [self-righteously] against a brother or judges his brother [hypocritically], speaks against the Law and judges the Law. If you judge the Law, you are not a doer of the Law but a judge of it.

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].