THEOSISPhilaret of Moscow (Drosdow)
Abraham established a grove near Beer-sheba, which may have served as a refuge from the region's heat, as he had previously settled near an oak tree (Gen. 18: 1, 4, 8). Alternatively, it might have been intended as a sacred space for worship, since in ancient practices, altars and sacred monuments were often constructed near oak trees (Gen. 12: 6, 7; Gen. 13: 18; Hab. 24: 26) until misuse rendered such sites displeasing to God. The preference for secluded and leafy settings for divine worship could stem from the belief that these spaces, being less marred by human presence, were purer and more fitting for the divine or from the notion that worship should embody an element of mystery.
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There, he called upon the name of the Lord, which signifies that he offered solemn worship and expressed gratitude to God for the protection granted to them from their adversaries. Referring to the God of eternity highlights His distinction from created beings and sets Him apart from the false gods worshipped by pagans, many of whom were celebrated for their longevity rather than their eternal nature.