There was no “8th day of creation” for God to finish up a few things that he forgot to take care of. If you want to posit one, go ahead and quote the Scripture that mentions such an 8th day. While you’re at it, you can try to explain why God rested when He hadn’t finished what He set out to accomplish. Was He just tuckered out? While you’re looking for those verses, you can chew on these: “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: 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.” Exo. 20:10-11The souls of Adam and his family were in heaven on the sixth day, waiting to be born, just as we in this generation were waiting.