daf bit: Shevuot 30
In a court case, the rabbis teach, the litigants stand. R' Yehudah said: I heard that if the court desires to allow them to sit, they may do so. What is prohibited? That one stand and the other sit, or that one speaks all he wishes and the other is bidden to be brief. The rabbis connect this to the verse "in righteousness shall you judge your neighbor" (Lev 19:15). Another interpretation of this verse: in righteousness shall you judge your neighbor means judge him in the scale of merit -- that is, if you see him doing something that appears to be wrong, look for a favorable interpretation of his actions. Another interpretation of the verse, from R' Yosef: he who is with you (your neighbor) in Torah and precepts, endeavor to judge him favorably. (30a)
