The Bible is not a collection of human opinions — it is the very word of God, given by divine inspiration. The phrase "given by inspiration of God" translates the Greek word theopneustos, meaning "God-breathed." Every word of Scripture originated from God Himself, conveyed through human authors who were moved by the Holy Ghost. Because God is perfect, omniscient, and incapable of error, His word is necessarily without contradiction.
When skeptics claim to find contradictions in the Bible, they are either misunderstanding the text, taking passages out of context, comparing different translations that use different underlying manuscripts, or imposing modern assumptions onto ancient literature. The alleged contradictions dissolve when Scripture is studied carefully, comparing spiritual things with spiritual.
It is also important to note that many so-called contradictions arise from modern Bible versions that have altered the text. The King James Bible, translated from the faithful Textus Receptus, resolves many of these issues that the corrupted Critical Text introduces.