"thief in the night" meaning in English

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        "3": "κλέπτης ἐν νυκτί"
      },
      "expansion": "Ancient Greek κλέπτης ἐν νυκτί (kléptēs en nuktí)",
      "name": "der"
    }
  ],
  "etymology_text": "A calque from Ancient Greek κλέπτης ἐν νυκτί (kléptēs en nuktí).",
  "forms": [
    {
      "form": "thieves in the night",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "thieves in the night"
      },
      "expansion": "thief in the night (plural thieves in the night)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "examples": [
        {
          "ref": "1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, 1 Thessalonians 5:2:",
          "text": "For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Something stealthy or that occurs without warning."
      ],
      "id": "en-thief_in_the_night-en-noun-Qa~drMoH",
      "links": [
        [
          "stealthy",
          "stealthy"
        ],
        [
          "warning",
          "warning"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/θiːf ɪn ðə naɪt/"
    },
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      "audio": "En-au-thief in the night.ogg",
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  ],
  "word": "thief in the night"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "κλέπτης ἐν νυκτί"
      },
      "expansion": "Ancient Greek κλέπτης ἐν νυκτί (kléptēs en nuktí)",
      "name": "der"
    }
  ],
  "etymology_text": "A calque from Ancient Greek κλέπτης ἐν νυκτί (kléptēs en nuktí).",
  "forms": [
    {
      "form": "thieves in the night",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "thieves in the night"
      },
      "expansion": "thief in the night (plural thieves in the night)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "ref": "1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, 1 Thessalonians 5:2:",
          "text": "For yourselves know perfectly that the day of the Lord so cometh as a thief in the night.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Something stealthy or that occurs without warning."
      ],
      "links": [
        [
          "stealthy",
          "stealthy"
        ],
        [
          "warning",
          "warning"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/θiːf ɪn ðə naɪt/"
    },
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      "audio": "En-au-thief in the night.ogg",
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  "word": "thief in the night"
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