ANSWER: Our answer is from the heart to some very fair and logical questions, and we are certainly not offended.
You specifically asked: "How do we join God's true Church?" The answer is one cannot decide to join the body of Christ. It is something God must put you into. We are instructed by the Apostle Paul that "... now hath God set the members every one of them in the body, as it hath pleased him" (I Cor. 12:18; also see Rom. 12:4-5).
It is God alone who decides who will compose the body of Christ. It is God who adds to the Church those whom He chooses to be saved: "... And the Lord added to the church daily such as should be saved" (Acts 2:47).
How, then, does God add a member to the Church? Is it a matter of signing on some dotted line? What is it that signifies membership in the Church of God?
Paul informs us, "For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit" (I Cor. 12:13).
It is the Holy Spirit - which is the power of Christ (Acts 1:8) - which puts us into the body of Christ. We are immersed or plunged into the Church by the receipt of God's Spirit. (Read our free article entitled "How You Can Be Imbued With the POWER of God." Also read our free booklet titled All About Water Baptism.)
One cannot put himself into the Church by "deciding to join." When he becomes a son of God, by having and being led by the Holy Spirit of God (Rom. 8:14), then God has put him into the Church.
This is explained further in our free booklet Where Is God's True Church Today?
Chapter one ("The Salvation Supermarket") of this publication examines the panorama of prepackaged Christianity. Chapter two ("Why So Many Denominations?") shows how, when and where this religious babylon of multiple denominations got started.
Chapter three ("What Is the Church?") shows what constitutes the Church. It explains that the Church is not a building, but the members of the body of Christ.
Finally, chapter four ("How to Find the True Church") gives several biblical qualifications identifying the true Church. It lists the twelve places in the New Testament where the true Church is actually named.
We suggest read Where Is God's True Church Today? Then do as the Bereans did - search the Scriptures (in this case especially those quoted in this booklet), whether these things be so (see Acts 17:11).
If you do, we are confident that you will come to the same exact conclusion that the Bereans did. "Therefore [as a result of their diligent checking and searching] many of them believed..." (verse 12).