Your first link says definition circle, circuit, compass, vault (of the heavens. so again they are not sure.Here you go:
Even the Gold Standard of Hebrew translation for Christians, Strong's Concordance lists this word as a circle, circuit, or at best the "vault of the heavens". No description of a spherical Earth.
And a very well written article by a current student of ancient Hebrew:
Your second link says "Firstly, with a little effort and research one can positively show that around the time Isaiah was written (8th Century BC)"
The word sphere was not around in 8th century BC.
The origin of the word sphere is 1250–1300
Google the origin of sphere yourself and you will see that it was not around in 8th century BC. You keep criticizing people for using creationists sites but you use bible/religious hater sites quite of for your links.
You using bible/religious hater sites is as you say to the creationists that use creation sites, a form of lying.