" The six days that God created the earth in were a representation of the Old Testament, and the seventh day that God rested in was a representation of the New Testament. The six days represented the law and work while the seventh day represented grace, faith, and rest. What does that mean?-it means that Jesus was the Sabbath that mankind would take their rest in once they received Him as Savior. "

― Calvin W. Allison , The Sunset of Science and the Risen Son of Truth