Parshat Vayeira - Beresheit Chapter 18 - Verse 3. Avraham pleads with his guests not to pass by, but to stay. The only thing he wanted to do was serve them. What upholds the world is built on chesed (kindness) and doing for others. Teaching people about Hashem and inviting guests is what Avraham did best. .....Also today is Rosh Chodesh Tammuz, so we speak about some Hashem Loves Me stories.