I loved what Paul said to the church in Thessalonica in 1 Thessalonians 2:13, “ For this reason we also thank God without ceasing, because when you received the word of God which you heard from us, you welcomed it not as the word of men, but as it is in truth, the word of God, which also effectively works in you who believe.” I can tell by Paul saying that, that he also faced the “That’s just your opinion” crowd wherever else he went. He had to actually thank these people for realizing right away that what he was saying wasn’t his opinion (words of man) but they were in truth the words of God.
This inability to tell the difference between the words of God and the word of man is a major problem today in the churches and outside of the church and it is causing many people to end up being deceived. There are way too many people receiving the word of man as though it is the word of God and the word of God as though it is the word of man. If when somebody shares the word of God with you and you say that it’s “just your opinion”, you’re receiving the word of God as though it is the word of man, nothing to take seriously. If somebody comes to you actually speaking their own opinion and you take it to be God’s words, then you have allowed yourself to be deceived.
If someone comes to you and you test their words with the word of God and it turns out they don’t match, you know that person is a liar or misunderstood the scripture, but when you do realize that it is indeed God’s words, don’t be hardened and reject it, Hebrews 3:15. If you reject somebody who truly is speaking the true words of God, you’re actually rejecting Jesus Christ (NOT saying that person is Christ but the words they speak are the words of God), and if you reject Christ you have rejected God the Father who sent Jesus to share these words with us. That is what Jesus meant here when He said this, “Whoever listens to you listens to Me; whoever rejects you rejects Me; but whoever rejects Me rejects Him who sent Me.” Luke 10:16.
Carefully, diligently, faithfully, and prayerfully study God’s words in the Bible so when somebody comes to you saying, “Thus says the Lord”, you will be able to know if God said that or it’s just that person’s opinion. Whenever you come across anything you don’t understand, it’s okay, just take a moment to pray for understanding then continue to read on, eventually God will reveal to you what that passage of scripture meant what you just read but didn’t understand. God may reveal the answer shortly after you pray or some time later. For me it’s usually some time later that God would reveal to me what that passage meant that I didn’t get. That’s why it’s so very important to always wait on the lord and not be anxious, He will answer your prayer, simply wait on Him. Psalm 27:14, Philippians 4:6-7.