foun·da·tion (founˈdāSH(ə)n/) - noun
the lowest load-bearing part of a building, typically below ground level.
an underlying basis or principle for something.
"But continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them; And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Messiah Yahshua. All scripture is given by inspiration of Yahweh, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of Elohim may be perfect, thoroughly furnished unto all good works."
(2 Timothy 3:14-16)