"If you look for Me wholeheartedly, you will find Me." Jer 29:13
Unfortunately, many people are not opening their Bibles to see if what they are being taught is actually the truth. The Bible says that when the apostle Paul was preaching, the Berean Jews were of more noble character because they examined the scriptures daily to be sure that what Paul was teaching them was true.
Regardless of what any church leader, pastor, or anyone else says... your final authority should be: "What does the Bible say?"
Paul taught that some things he was teaching are hard to understand, "which ignorant and unstable people distort, as they do the other Scriptures, to their own destruction." 2 Pet 3:16
The Apostle Paul also warned that in the last days, not every minister would be teaching the truth of God's Word. "For a time is coming when people will no longer listen to sound and wholesome teaching. They will follow their own desires and will look for teachers who will tell them whatever their itching ears want to hear. They will reject the truth and chase after myths." 2 Tim 4:3-4
"I tell you this so that no one may deceive you by fine-sounding arguments." Col 2:4