'Foundations' in the Bible

Thus says the Lord,“If the heavens above can be measuredAnd the foundations of the earth searched out below,Then I will also cast off and abandon all the descendants of IsraelFor all that they have done,” says the Lord.

“They will not take from you [even] a stone for a cornerstoneNor any rock for a foundation,But you will be desolate forever,” says the Lord.

Thus says the Lord of hosts,“The broad wall of Babylon will be completely overthrown and the foundations razedAnd her high gates will be set on fire;The peoples will labor in vain,And the nations become exhausted [only] for fire [that will destroy their work].”