"לעולם ועד" meaning in Hebrew

{
  "etymology_text": "From לְעוֹלָם (l'olám, “forever”) + וָ־ (va-, “and”) + adverbialized form related to עַד ('ad, “until”).",
  "forms": [
    {
      "form": "לְ עוֹלָם וָ עֶד",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "l'olám va'éd",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "tr": "l'olám va'éd",
        "wv": "לְעוֹלָם וָעֶד"
      },
      "expansion": "לְעוֹלָם וָעֶד • (l'olám va'éd)",
      "name": "he-adv"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Hebrew entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "for ever and ever"
      ],
      "id": "en-לעולם_ועד-he-adv-qhfG2lWv",
      "links": [
        [
          "for ever and ever",
          "for ever and ever"
        ]
      ]
    }
  ],
  "word": "לעולם ועד"
}

{
  "etymology_text": "From לְעוֹלָם (l'olám, “forever”) + וָ־ (va-, “and”) + adverbialized form related to עַד ('ad, “until”).",
  "forms": [
    {
      "form": "לְ עוֹלָם וָ עֶד",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "l'olám va'éd",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "tr": "l'olám va'éd",
        "wv": "לְעוֹלָם וָעֶד"
      },
      "expansion": "לְעוֹלָם וָעֶד • (l'olám va'éd)",
      "name": "he-adv"
    }
  ],
  "lang": "Hebrew",
  "lang_code": "he",
  "pos": "adv",
  "senses": [
    {
      "categories": [
        "Hebrew adverbs",
        "Hebrew entries with incorrect language header",
        "Hebrew lemmas",
        "Hebrew multiword terms",
        "Pages with 1 entry"
      ],
      "glosses": [
        "for ever and ever"
      ],
      "links": [
        [
          "for ever and ever",
          "for ever and ever"
        ]
      ]
    }
  ],
  "word": "לעולם ועד"
}