Contradiction with Genesis 1:31
Genesis 1:31 states that God saw everything that He had made, and indeed it was very good, contrasting with Genesis 2:1 which implies the completion of the heavens and earth, suggesting a finiteness rather than ongoing creation.
Genesis 1:31: And God saw every thing that he had made, and, behold, [it was] very good. And the evening and the morning were the sixth day. [And the evening...: Heb. And the evening was, and the morning was etc.]
Contradiction with Exodus 20:11
Exodus 20:11 indicates that God created the heavens, the earth, the sea, and all that is in them in six days and rested on the seventh, reinforcing the completion in Genesis 2:1 but suggesting rest rather than ongoing activity.
Exodus 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.