Contradiction with Proverbs 12:19
Lies are temporary, but Genesis 39:15 shows a lie causing long-term issues for Joseph.
Proverbs 12:19: The lip of truth shall be established for ever: but a lying tongue [is] but for a moment.
Contradiction with Exodus 20:16
Commandment against bearing false witness contrasts Potiphar's wife falsely accusing Joseph.
Exodus 20:16: Thou shalt not bear false witness against thy neighbour.
Contradiction with 1 Timothy 1:10
False accusers are listed negatively, yet Genesis 39:15 shows one appearing to gain an advantage.
1 Timothy 1:10: For whoremongers, for them that defile themselves with mankind, for menstealers, for liars, for perjured persons, and if there be any other thing that is contrary to sound doctrine;
Contradiction with Proverbs 19:5
A false witness shall not go unpunished, yet in Genesis 39:15, Potiphar's wife seems unpunished.
Proverbs 19:5: A false witness shall not be unpunished, and [he that] speaketh lies shall not escape. [unpunished: Heb. held innocent]
Contradiction with Proverbs 6:16-19
The Lord hates a lying tongue, yet Potiphar's wife’s lie initially succeeds.
Proverbs 6:16-19: These six [things] doth the LORD hate: yea, seven [are] an abomination unto him: [unto...: Heb. of his soul]