Reference for Niddah 140:20

לכשיחיו נחכם להן

— The former refers to the time before sentence is passed while the latter refers to the time after the sentence has been passed. One verse says, For the Lord hath chosen Zion,<span class="x" onmousemove="('comment',' Ps. CXXXII, 13. ');">¹⁷</span>

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