Genesis 2:2-3 - God blessed the seventh day and made it holy

Praise the lord

By the seventh day God had finished the work he had been doing; so on the seventh day he rested from all his work. And God blessed the seventh day and made it holy, because on it he rested from all the work of creating that he had done!

As part of the creation account, we see that work is not a part of the curse, but a part of the very activity of God. So when we work we are like God. But that work should be marked with times of rest and refreshing. To rest during times of work or work during times of rest creates an atmosphere of fatigue to our bodies and souls. It takes us out of His blessing.

-Jeba