Contradiction with Matthew 5:44
Jesus instructs to love and pray for enemies, while Song of Solomon 5:16 speaks of beloved's endearing qualities, not addressing adversary love.
Matthew 5:44: But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
Contradiction with Proverbs 11:22
Likens a beautiful woman without discretion to a gold ring in a pig’s snout, contradicting the idealized and perfect love described in Song of Solomon 5:16.
Proverbs 11:22: [As] a jewel of gold in a swine's snout, [so is] a fair woman which is without discretion. [is without: Heb. departeth from]
Contradiction with 1 John 2:15-16
Warns against loving the world and fleshly desires, contradictory to the passionate physical and worldly love celebrated in Song of Solomon 5:16.
1 John 2:15-16: Love not the world, neither the things [that are] in the world. If any man love the world, the love of the Father is not in him.
Contradiction with Jeremiah 17:5
Curses those who trust in man, conflicting with Song of Solomon 5:16, which expresses deep adoration and trust in a human beloved.
Jeremiah 17:5: Thus saith the LORD; Cursed [be] the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the LORD.
Contradiction with Mark 12:30
Commands love for God with all heart and soul, whereas Song of Solomon 5:16 is focused on human romantic love.
Mark 12:30: And thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength: this [is] the first commandment.