God Expresses 'Magnitude' in The New Testament, by saying "a thousand".

Hebrews 12:22; "But ye are come unto mount Sion, and unto the city of the living God, the heavenly Jerusalem, and to an innumerable company of angels,"

An Unshakable Kingdom

…21 "The sight was so terrifying that even Moses said, “I am trembling with fear.”

22 Instead, you have come to Mount Zion, to the city of the living God, the heavenly Jerusalem. You have come to myriads of angels

23 in joyful assembly, to the congregation of the firstborn, enrolled in heaven.
You have come to God the Judge of all, to the spirits of the righteous made perfect,…"

"innumerable company of angels," & "myriads of angels" = countless thousands of angels

New International Version

But you have come to Mount Zion, to the city of the living God, the heavenly Jerusalem. You have come to thousands upon thousands of angels in joyful assembly,

New Living Translation

No, you have come to Mount Zion, to the city of the living God, the heavenly Jerusalem, and to countless thousands of angels in a joyful gathering.

Contemporary English Version

You have now come to Mount Zion and to the heavenly Jerusalem. This is the city of the living God, where thousands and thousands of angels have come to celebrate.

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Jude 1:14; "And Enoch also, the seventh from Adam, prophesied of these, saying, Behold, the Lord cometh with ten thousands of his saints",

Revelation 5:11; "And I beheld, and I heard the voice of many angels round about the throne and the beasts and the elders: and the number of them was ten thousand times ten thousand, and thousands of thousands;

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And more from The Old Testament:

Daniel 5:1
HEB: רַ֔ב לְרַבְרְבָנ֖וֹהִי אֲלַ֑ף וְלָקֳבֵ֥ל אַלְפָּ֖א
NAS: feast for a thousand of his nobles,
KJV: feast to a thousand of his lords,
INT: A great of his nobles A thousand the presence of the thousand

Daniel 5:1
HEB: אֲלַ֑ף וְלָקֳבֵ֥ל אַלְפָּ֖א חַמְרָ֥א שָׁתֵֽה׃
NAS: wine in the presence of the thousand.
KJV: wine before the thousand.
INT: A thousand the presence of the thousand wine was drinking