Contradiction with Matthew 6:5
This verse advises against public religious display, while Deuteronomy 26:3 involves a public declaration before a priest in the temple.
Matthew 6:5: And when thou prayest, thou shalt not be as the hypocrites [are]: for they love to pray standing in the synagogues and in the corners of the streets, that they may be seen of men. Verily I say unto you, They have their reward.
Contradiction with Matthew 6:6
This verse emphasizes private prayer, contrasting with the public confession and ritual in Deuteronomy 26:3.
Matthew 6:6: But thou, when thou prayest, enter into thy closet, and when thou hast shut thy door, pray to thy Father which is in secret; and thy Father which seeth in secret shall reward thee openly.
Contradiction with Galatians 3:24-25
These verses mention that Christians are no longer under the law, whereas Deuteronomy 26:3 outlines a specific law-driven ritual.
Galatians 3:24-25: Wherefore the law was our schoolmaster [to bring us] unto Christ, that we might be justified by faith.