We also have yet another version of the story in the 2nd-century
Paralipomena of Jeremiah aka 4 Baruch (3.6-20), which is canonical only in the Ethiopian Church (as part of the
Rest of the Words of Baruch).
Then Jeremiah spoke, saying: “I beg you, Lord, bid me to speak in your presence.”
And the Lord said: “Speak, my chosen one Jeremiah.”
And Jeremiah said: “Behold, Lord, now we know that you are delivering the city into the hands of its enemies, and they will take the people away to Babylon. What do you want me to do with the holy vessels of the temple service?”
And the Lord said to him: “Take them and consign them to the earth, saying: 'Hear, Earth, the voice of your creator who formed you in the abundance of waters, who sealed you with seven seals for seven epochs, and after this you will receive your ornaments (?) – Guard the vessels of the temple service until the gathering of the beloved.”
And Jeremiah spoke, saying: “I beseech you, Lord, show me what I should do for Abimelech the Ethiopian, for he has done many kindnesses to your servant Jeremiah. For he pulled me out of the miry pit; and I do not wish that he should see the destruction and desolation of this city, but that you should be merciful to him and that he should not be grieved.”
And the Lord said to Jeremiah: “Send him to the vineyard of Agrippa, and I will hide him in the shadow of the mountain until I cause the people to return to the city. And you, Jeremiah, go with your people into Babylon and stay with them, preaching to them, until I cause them to return to the city. But leave Baruch here until I speak with him.”
When he had said these things, the Lord ascended from Jeremiah into heaven. But Jeremiah and Baruch entered the holy place, and taking the vessels of the temple service, they consigned them to the earth as the Lord had told them. And immediately the earth swallowed them. And they both sat down and wept.
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Then Jeremiah spoke, saying: “I beg you, Lord, bid me to speak in your presence.”
And the Lord said: “Speak.”
And Jeremiah said: “Behold, Lord, we know that you are delivering the city into the hands of its enemies, and your people depart for Babylon. What then will we do with your holy vessels?”
And God said: “Consign them to the earth, saying: ‘Hear, earth, the voice of your creator, who founded you upon the waters, who sealed you with seven seals for seven epochs, and
after this you will receive your ornaments. Guard the vessels of the temple service until the gathering of the beloved.’”
And Jeremiah spoke again, saying: “I beseech you, Lord, what should I do for Abimelech the Ethiopian, for he has done many kindnesses to your servant? For he drew me up out of the miry pit where they threw me, and I do not wish that he should see the destruction and spoiling of the city because he is little-souled.”
And the Lord said to Jeremiah: “Send him to the vineyard of Agrippa, and I will hide him in the shadow of the mountain until the people are about to return from the captivity. And you, Jeremiah, go with your people into Babylon and stay with them, preaching to them, until I cause them to return. But leave Baruch here.”
Then they went into the temple, and taking the vessels of the temple service, they consigned them to the earth as the Lord had told them.
In this version, Jeremiah and Baruch consign “the vessels of the temple service” not into a mountain, but into the earth, where - like the version in 2 Maccabees - they are to remain “until the gathering of the beloved.”