God’s Appearance to Abraham: Vision or Visit? (Prof.Ben-Zion Katz M.D., thetorah.com)
Prof. Ben-Zion Katz M.D. Genesis 17 (vv. 23-27), Abraham, his son Ishmael, and their entire household are circumcised; parashat Vayera (Gen. 18) begins immediately after this. The first few verses of the parasha read (the New Jewish Publication Society translation, with some modifications): Gen. 18 אוַיֵּרָא אֵלָיו יְהוָה בְּאֵלֹנֵי מַמְרֵא וְהוּא יֹשֵׁב פֶּתַח הָאֹהֶל כְּחֹם הַיּוֹם. בוַיִּשָּׂא עֵינָיו וַיַּרְא וְהִנֵּה […]