Contradiction with Genesis 39:4
This verse describes a situation where Joseph found favor in the eyes of his master and was promoted without any condition of setting wages, unlike Genesis 30:28 where compensation is negotiated.
Genesis 39:4: And Joseph found grace in his sight, and he served him: and he made him overseer over his house, and all [that] he had he put into his hand.
Contradiction with Matthew 10:8
This verse commands freely giving as you have freely received, contradicting the negotiation for wages in Genesis 30:28.
Matthew 10:8: Heal the sick, cleanse the lepers, raise the dead, cast out devils: freely ye have received, freely give.
Contradiction with Acts 8:20
This verse condemns the notion of receiving God's gifts through money, contrasting the negotiation for service in Genesis 30:28.
Acts 8:20: But Peter said unto him, Thy money perish with thee, because thou hast thought that the gift of God may be purchased with money.