Contradiction with Matthew 10:16
Contradicts by implying that not all strangers should be shown kindness and readiness to help.
Matthew 10:16: Behold, I send you forth as sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves. [harmless: or, simple]
Contradiction with Proverbs 26:25
Suggests not to trust a stranger even if they seem kind.
Proverbs 26:25: When he speaketh fair, believe him not: for [there are] seven abominations in his heart. [speaketh...: Heb. maketh his voice gracious]
Contradiction with 1 John 2:15
Implies not to love the world or the things in the world, which may include strangers.
1 John 2:15: 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 Isaiah 47:1-3
Depicts strangers as untrustworthy and not deserving of kindness.
Isaiah 47:1-3: Come down, and sit in the dust, O virgin daughter of Babylon, sit on the ground: [there is] no throne, O daughter of the Chaldeans: for thou shalt no more be called tender and delicate.