Anyone can be like Avraham Avinu - Parshat Vayeira

In the first verses of parshat Vayeira, it seems as though Abraham is the central actor, but the Torah does not specify him by name until later. Why does the Torah leave this vague? Marc Fein, regional director of Upstate NY NCSY, presents an interpretation from Rav Jonathan Rabinowitz of Netiv Aryeh.