The Hebrew word ashel refers to the tamarisk tree — a hardy, salt-tolerant tree that thrives in arid and semi-arid environments. The tamarisk grows in the Negev and Sinai regions and was associated with the patriarchs, particularly Abraham.
Abraham planted a tamarisk tree at Beersheba and called on the name of the Lord there (Genesis 21:33). The tamarisk's remarkable ability to survive in harsh, dry conditions makes it a fitting symbol of enduring faith. Planting a tree was an act of long-term hope — one does not plant for shade today but for generations to come. The tamarisk site at Beersheba became a place of covenant and worship, reminding Israel that their father Abraham worshiped the Eternal God (El Olam) even in desert places.