出典:Wiktionary
From the use of know in the Bible. Some Bible translations, such as the King James Version, translate the Hebrew word יָדַע (yādaʿ) as know even in sexual contexts, giving rise to lines like “And Adam knew Eve his wife; and she conceived.”
know someone in the biblical sense (三人称単数 現在形 knows someone in the biblical sense, 現在分詞 knowing someone in the biblical sense, 過去形 knew someone in the biblical sense, 過去分詞 known someone in the biblical sense)