כְּלָיוֹתkelayot meaning in Biblical Hebrew
kidneys — the seat of conscience and one's innermost feelings · noun, feminine plural
Two in the morning, the house is quiet, and something inside you is still going over what you said at dinner. Biblical Hebrew says that's your kidneys talking.
אֲבָרֵךְ אֶת־יְהוָה אֲשֶׁר יְעָצָנִי אַף־לֵילוֹת יִסְּרוּנִי כִלְיוֹתָי
“I bless the LORD who counsels me; even at night my kidneys instruct me. (Psalm 16:7)”
Recall a night you lay awake arguing with yourself: in Biblical Hebrew, what organ was doing the talking?