Contradiction with 1 Samuel 2:15
This verse contradicts Deuteronomy 16:7 by showing that meat was often demanded to be roasted prior to sacrifice, while Deuteronomy 16:7 specifies that the meat should be boiled.
1 Samuel 2:15: Also before they burnt the fat, the priest's servant came, and said to the man that sacrificed, Give flesh to roast for the priest; for he will not have sodden flesh of thee, but raw.
Contradiction with Genesis 22:8-9
This verse describes a burnt offering, which involves completely burning the sacrifice, contrasting with the instruction in Deuteronomy 16:7 to cook and consume the meat.
Genesis 22:8-9: And Abraham said, My son, God will provide himself a lamb for a burnt offering: so they went both of them together.
Contradiction with 1 Kings 18:38
This verse describes the fire consuming a sacrifice entirely on the altar, which opposes Deuteronomy 16:7's intent on cooking and eating the sacrifice rather than burning it completely.
1 Kings 18:38: Then the fire of the LORD fell, and consumed the burnt sacrifice, and the wood, and the stones, and the dust, and licked up the water that [was] in the trench.