Or HaChaim on Exodus 34:24/אור החיים על שמות ל״ד:כ״ד

1 כי אוריש גוים מפניך, "For I will dispossess nations from your presence, etc." In the event that you would feel empathy with the nations whom you displace, G'd assures us that we would not even see the remnants of these nations, i.e. מפניך, "out of the sight of your face."

2והרחבתי את גבולך, "and I will expand your borders, etc." This may be understood in accordance with Gittin 57 which claims that the boundaries of the land of Israel will expand in direct proportion to the Jewish population in the country. The sages base this on Jeremiah 3,19 where the land of Israel is described as ארץ צבי, as comparable to the deer. The skin of the deer is exceptionally elastic.