This is the opposite of the proper way to form beliefs. We should study the Word and let our doctrine be what God's Word teaches us. The Body of Christ, the church, has been divided by false doctrines, doctrines founded upon theory and speculation instead of the unchanging Word of God. We can love the truth and live forever as sons of God or believe a lie and be damned. Let's seek truth and walk in the light God gives us.
Tongues are real, and they are for the church today.
They have been ruled out, not by the scriptures but by misguided clergy. Might we be careful to use the gift properly. We see only one type tongue here. When it is unknown it is used in private worship, but when an interpreter is present in may be used to edify the body. Some attribute still another operation to tongues, that being evidencing the believer's being filled with the Holy Spirit.