Be'er Sheva, when translated, means "well of sevens" or "well of oath." just as Abraham offered up 7 ewe lambs and Hashem offered up the ram in place of Isaac, so Be'er Sheva gives us hope in the future of promised eternal peace of Hashem. Like the groves planted by Abraham in Be'er Sheva, those who abide in Hashem and keep His mitzvot will blossom forth an abundance of good fruits of righteousness.