Contradiction with Numbers 12:6-8
Deuteronomy 1:1 attributes the words to Moses, while Numbers 12:6-8 indicates that God speaks directly to Moses, suggesting God as the ultimate author.
Numbers 12:6-8: And he said, Hear now my words: If there be a prophet among you, [I] the LORD will make myself known unto him in a vision, [and] will speak unto him in a dream.
Contradiction with Exodus 20:1-17
Deuteronomy 1:1 states Moses spoke to Israel, while in Exodus 20:1-17, God Himself is directly speaking to the Israelites, showing a different mode of communication.
Exodus 20:1-17: And God spake all these words, saying,
Contradiction with Hebrews 1:1-2
Deuteronomy 1:1 records Moses as the spokesperson, whereas Hebrews 1:1-2 suggests God previously spoke through prophets but has now communicated through His Son, implying Moses's time is past.
Hebrews 1:1-2: God, who at sundry times and in divers manners spake in time past unto the fathers by the prophets,
Contradiction with John 5:46-47
Deuteronomy 1:1 emphasizes Moses's words, but John 5:46-47 highlights that if the people believed Moses, who wrote about Jesus, they should believe Jesus, pointing to the insufficiency of merely Moses's words.
John 5:46-47: For had ye believed Moses, ye would have believed me: for he wrote of me.