Sforno on Genesis 19:27/ספורנו על בראשית י״ט:כ״ז

1אל המקום אשר עמד שם את פני ה, to the place to which he had accompanied the angels. This is where the punishing hand of G’d had first appeared to him. Since he had not been able to save the inhabitants of Sodom legally, he prepared to intercede for them by asking G’d s mercy for them.