“Called out loudly in Hebrew”
Please speak to your servants in Aramaic, since we understand it. Do not speak with us in Hebrew in the hearing of the people on the wall… Then the Rabshakeh stood and called out loudly in Hebrew: 'Hear the word of the great king, the king of Assyria!' (2 Kings 18:26–28 BSB)
What it sounds like today
A minor quibble about which language to use in a negotiation.
The cultural key
This is a scene of calculated propaganda. Aramaic was the international language of diplomacy, understood by officials on both sides, while Hebrew ('the language of Judah') was the tongue of the common people manning Jerusalem's walls. Hezekiah's envoys ask the Assyrian field commander to negotiate in Aramaic precisely so the soldiers overhearing will not be demoralized. He refuses on purpose and instead raises his voice in Hebrew, going over the officials' heads to address the troops directly, promising them the horrors of siege unless they surrender. The choice of language is not a technicality; it is a deliberate act of psychological warfare to break the defenders' morale.
Recovered meaning
The Assyrian envoy is begged to speak Aramaic so the troops on the wall won't understand, and pointedly shouts in Hebrew instead to terrify them into surrender. The language is a weapon, not a formality.