Passage
And the nations shall know that I am Jehovah that sanctifieth Israel, when my sanctuary shall be in the midst of them for evermore.
Ezekiel 37:28 (ASV)
Nearby Context
Ezekiel 37:26 Moreover I will make a covenant of peace with them; it shall be an everlasting covenant with them; and I will place them, and multiply them, and will set my sanctuary in the midst of them for evermore.
Ezekiel 37:27 My tabernacle also shall be with them; and I will be their God, and they shall be my people.
Ezekiel 37:28 And the nations shall know that I am Jehovah that sanctifieth Israel, when my sanctuary shall be in the midst of them for evermore.
Study Lenses
The verse centers on "nations", "shall", "jehovah", "sanctifieth", "israel", "sanctuary", and "midst". It is saying that the verse draws attention to "nations" and "shall", so its meaning should be read from those terms before moving to application.
The prior verse says "My tabernacle also shall be with them...", giving immediate footing for "nations" and "shall". In Ezekiel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "nations" and "shall" with trust shaped by these words, not by a vague optimism outside the passage.