Contradiction with Matthew 5:44
John 15:18 mentions the world's hatred, while Matthew 5:44 instructs to love enemies and bless them that curse you.
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 1 John 4:7
John 15:18 speaks about hatred, whereas 1 John 4:7 talks about loving one another, as love is of God.
1 John 4:7: Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God. [is born: Gr. has been born]
Contradiction with Romans 12:18
John 15:18 indicates the inevitability of hatred, but Romans 12:18 encourages living peaceably with all.
Romans 12:18: If it be possible, as much as lieth in you, live peaceably with all men.
Contradiction with James 3:17
John 15:18 suggests anticipated hatred, while James 3:17 describes wisdom from above as peaceable and gentle.
James 3:17: But the wisdom that is from above is first pure, then peaceable, gentle, [and] easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. [partiality: or, wrangling]
Contradiction with 1 Peter 3:9
John 15:18 refers to being hated by the world, contrary to 1 Peter 3:9, which advises not to retaliate but to bless others.
1 Peter 3:9: Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
Paradox #1
The contradiction or conflict in John 15:18 could be seen as the idea of being hated for being different or holding certain beliefs. On one hand, it suggests that being disliked by the broader society is expected and acceptable if one is following certain values. On the other hand, it might seem to contradict the universal message of love and acceptance, as it implies division or conflict between those with different beliefs. This tension between embracing love and facing hatred might appear inconsistent.