The scriptures are from God (2 Tim. 3:16). God is not the author of confusion (1 Cor. 14:33). The assumption that we cannot all be on the same page would mean we cannot understand the Bible. It would help to clear up what is meant by everyone being alike. Paul spoke of the divisions in Corinth that were attributed to following personalities and not the Word of God. Paul states that the brethren in Corinth should be of the “…same mind and judgment” (1 Cor.1:10). Later in the same book he warns to not elevate men above that which is written (1 Cor. 4:6). Is it not implied, therefore, that we can all agree as pertaining to those things of salvation?
What if a brother in Corinth thought it was wrong to eat meats and he ate only herbs? Such a person was weak in the faith and needed deeper study. The person who ate herbs or the one who ate meat was not to despise each other. In these areas what would have been needed was deeper study. What if one says that baptism is not necessary to salvation? Such a person would be preaching another gospel (Gal. 1:6,7). There are things that are matters of judgment and we all can have an opinion as to what people should do.
God has given us all things that pertain to life and godliness (2 Peter 1:3). We each study our Bibles to reach valid conclusions about those things that certainly we believe among us (Luke 1:4). Is it possible to reach wrong conclusions? The Bible is infallible but we are not. Hence, we study daily to know that what we have been taught is right before God (Acts 17:11). Matters of faith we must agree on while matters of judgment call for deeper study. Why do churches teach different things? Look at what they teach and ask, is it faith or judgment? The reason today there is so much confusion is that men have given up on the Word of God and their ability to understand it.