A dictionary of Proverbs (Oxford Paperback Reference)

No one should be JUDGE in his own cause
Cf. the Latin legal maxim: nemo debet esse iudex in propria causa, no one should be judge in his own cause; also 1604 SHAKESPEARE Measure for Measure v. i. 166 In this I’ll be impartial; be you judge Of your own cause.

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  c 1449 R. PECOCK Repressor of Blaming of Clergy (1860) II. 381 Noman oughte be iuge in his owne cause which he hath anentis [against] his neighbour. 1775 WESLEY Letter 3 Nov. (1931) VI. 186 No man is a good judge in his own cause. I believe I am tolerably impartial. 1928 Times 22 Aug. 9. The principle that no judge could be a judge in his own case was generally accepted. The chairman of a meeting was in a quasi-judicial capacity. 1981 Daily Telegraph 16 May 18 The maxim that no one should be judge in his own cause. *law and lawyers
  

JUDGE not, that ye be not judged
With allusion to MATTHEW vii. 1 (AV) Judge not, that ye be not judged.

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  1481 CAXTON Reynard (1880) xxix. Deme [judge] ye noman, and ye shal not be demed. 1509 H. WATSON Ship of Fools H1 Judge not but yf that ye wyl be judged. 1925 A. CLUTTONBROCK Essays on Life x. The saying, Judge not, that ye be not judged,’ is.. a statement of fact. Nothing makes us dislike a man so much as the knowledge that he is always judging us and all men. 2001 Washington Times 27 Nov. A12 The purpose is neither to gloat, nor to deride nor to humiliate our enemies and adversaries. Indeed, much wisdom and prudence is captured in the biblical injunction, ‘Judge not, that ye be not judged.’ ■reciprocity; tolerance
  

judge (verb) see also you can’t tell a BOOK by its cover.
June see a DRIPPING June sets all in tune.
Be JUST before you’re generous

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