Jamieson, Fausset & Brown, on Jas 5:9

“Grudge not, brethren, one against another, that you may not be judged. Behold the judge standeth before the door.”

“Grudge not--rather "Murmur not"; "grumble not." The Greek is literally, "groan": a half-suppressed murmur of impatience and harsh judgment, not uttered aloud or freely. Having exhorted them to patience in bearing wrongs from the wicked, he now exhorts them to a forbearing spirit as to the offenses given by brethren. Christians, who bear the former patiently, sometimes are impatient at the latter, though much less grievous. lest . . . condemned--The best manuscript authorities read, "judged." James refers to Mat 7:1, "Judge not lest ye be judged." To "murmur against one another" is virtually to judge, and so to become liable to be judged. judge . . . before the door--referring to Mat 24:33. The Greek is the same in both passages, and so ought to be translated here as there, "doors," plural. The phrase means "near at hand" (Gen 4:7), which in the oldest interpretations [Targums of Jonathan and Jerusalem] is explained, "thy sin is reserved unto the judgment of the world to come." Compare "the everlasting doors" (Psa 24:7, whence He shall come forth). The Lord's coming to destroy Jerusalem is primarily referred to; and ultimately, His coming again visibly to judgment.”

Imported from an open dataset — not yet checked against the printed edition.