Sforno on Genesis 28:16/ספורנו על בראשית כ״ח:ט״ז

1אכן יש ה' במקום הזה, there can be no question that this is a location from where the gift of prophetic insights is dispensed, seeing that I have been granted such an insight without even having expected it or prepared myself for it spiritually. It is a fact that the characteristics of a person undergo changes in the land of Israel just as the climate and very air in this country are different, contribute to one’s mental and spiritual progress. Our sages have phrased this (Baba Batra 158) as “the very air of the Land of Israel makes one wiser.”

2ואנכי לא ידעתי, if I had realised the special distinction of this site I would have prepared myself mentally for receiving these Divine insights.