Dina,You ask a very good and appropriate question for 'house-churcher's'. My family and I have gone through many (sometimes painful) 'discussions' with others of different doctrinal beliefs.
I agree with Jeff Barth, author of "What About Church?" (a good book on house-church movement), who says we need to focus on why we are fellowshipping together, our purpose. My family's motivation is to be, and to raise our children to be, holy righteous and spotless from this evil world. We want to exhort (encourage) one another to good works and to flee temptation.
We all need to realize and deal with the fact that we all come from different backgrounds and teachings, and we all can and usually do interpret some scriptures differently. In answer to your question, I personally believe the church service/praise time/teaching time of the entire group is NOT the time to 'discuss' (debate) doctrinal issues. One exception is if someone from the pulpit speaks a clear heresy on an essential of faith and salvation, such as refuting the deity of Christ, the holiness of God, or the blood of Christ as payment for our sins.
It is my hope that if people believe on Jesus Christ as their Lord and Saviour, that they desire to be sanctified more and more each day, that they want to raise up a Godly generation after them, then those people should be able to fellowship and worship God and exhort one another without going to swords over interpretation of scriptures regarding the sacraments, gift of tongues, end times, etc.
If everyone in the room believes in all their heart that Jesus is the Son of God and is saved, why debate on how they came to receive their saving faith in Jesus?
I believe the best time to 'discuss' doctrine is at a specially designated meeting for ONLY those interested and willing to discuss, not during the Sunday morning worship time, and when all participants have had time to search the scriptures and pray about the doctrinal issue, and ONLY if all participants agree ahead of time not to speak in anger, not to call each other names (in other words, to love one another), not to imply that if someone does not agree they are on the 'slippery slope' to damnation. Discussion participants need to realize up front that everyone may need to simply agree to disagree on certain doctrinal issues but they can still fellowship with each other.
I agree with all the comments about commentaries. They can be helpful, and insightful. But they can be extremely dangerous if a person accepts them as the "gospel truth". I agree that meditation on what the scriptures actually say (read them in context, ie an entire chapter at a time), prayer, and waiting on the Holy Spirit is the best way to interpret scripture.
Mike
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