Relatively.
“The earth is not flat. The Universe is flat.
Relatively.”
It is he who sits above the circle of earth,
and its inhabitants are like grasshoppers;
who stretches out the heavens like a curtain,
and spreads them like a tent to dwell in;
Isaiah 40:22 written around 2700 years ago
There’s lots of different scriptures about stretching the heavens out but I picked this one because it also tells us the earth was round. Bible believers are called flat-earthers but apparently they knew the facts long before others did.