Jas 4:12

“But who are you to judge your neighbor? He condemns the recklessness of the one who delights in judging his neighbor without taking care to consider the state of his own frailty and the uncertainties of his temporal life. And because sometimes, through the change of the right hand of the Most High, those who judged their neighbor are subjected to the power of the one they judged, sometimes they are suddenly taken from the world while still living, he subsequently also condemns the recklessness of those who, having no certainty of their own life, stretch their minds into the future, thinking of the profits of many years to come. For it follows:”

“Therefore, do not presume, he says, to degrade and, as it were, to counter-legislate, for this will not be forgiven you, since there is only one Lawgiver — God, who is able "to save and to destroy" transgressors of His law, for to punish the transgressors of the law belongs to the law and the Lawgiver, while you have nothing more than idle talk and yourself bring upon yourself the sentence of condemnation, for doing the same thing as the one you condemn, you condemn yourself to the same degree that you condemn him. He speaks dismissively. When you yourself are such, how dare you judge one of like nature?”

“There is one lawgiver--The best authorities read in addition, "and judge." Translate, "There is One (alone) who is (at once) Lawgiver and Judge, (namely) He who is able to save and destroy." Implying, God alone is Lawgiver and therefore Judge, since it is He alone who can execute His judgments; our inability in this respect shows our presumption in trying to act as judges, as though we were God. who art thou, &c.--The order in the Greek is emphatic, "But (inserted in oldest manuscripts) thou, who art thou that judgest another?" How rashly arrogant in judging thy fellows, and wresting from God the office which belongs to Him over thee and THEM alike! another--The oldest authorities read, "thy neighbor."”