Here's why:
Exod 20:8-11 (AKJV/PCE)
(20:8) Remember the sabbath day, to keep it holy. (20:9)
Six days shalt thou labour, and do all thy work: (20:10)
But the seventh day [is] the sabbath of the LORD thy God: [in it] thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that [is] within thy gates: (20:11)
For [in] six days the LORD made heaven and earth, the sea, and all that in them [is], and rested the seventh day: wherefore the LORD blessed the sabbath day, and hallowed it.
There is clear and unambiguous. The days of Creation were SIX literal days.
So now you're taking figurative language and trying to make it literal. What a laugh!
So, according to you, the Creation was six thousand years long and the Israelites were supposed to work for six thousand years and then take a thousand years off.