A Christian, Pastor or Church must be doctrinally sound to be of any value to the cause of Christ:
"Jesus answered them, and said, My doctrine is not mine, but his that sent me." John 7:16
The word doctrine is found 50 times in the Bible, nine tenths in the New Testament. The Beatitudes of Matthew are called doctrine. Christ and Paul spoke and taught doctrine. Any Church cannot operate honestly and profitably without a set statement of Doctrine based upon the Word of God. Any Church that publicizes itself as being un-denominational or non-denominational will still operate on a secret agenda or doctrine or they won't last very long. They generally implode, explode or become corrupt.
The word doctrine refers to a specified system of belief. It normally refers to a statement of faith. A person or group of persons who have no statement of faith is normally unstable or confused.
A statement of faith establishes some perimeters and parameters that define the person or group.
First in doctrinal structure is the definition of God. Christians and Moslems have a different God. He is not the same God with two names, He cannot equal both group's expectations. The God of the Bible is the same God of Jews and Christians though they do not see Him alike. Again one needs a whole Bible to know God. Theology is the doctrine of God.
Second in doctrinal structure is the definition of what God expects. Two thoughts arise. God gave us a book or God speaks to us in our heads. Doctrine extracted from a book is more tangible and more lasting and more sensible than doctrine extracted from a bunch of brains.
Thirdly, doctrinal structure must give a rational description of a path between God and man. Two thoughts prevail. Man has to devise a way to God or God has provided His own path to Himself for man. Soteriology is the doctrine of salvation. A major doctrinal division regarding salvation is what part baptism plays in it. It is important whether you believe blood or water washes away your sin. It will make the difference in your eternity.
This brings us to a fourth doctrinal structure. Where will you spend eternity? There is the doctrine of Hell and there is the doctrine of Heaven. Is Hell on earth and what you make it or is Hell a place of fire and torment? Is Heaven the final destination of all of God's creation or is it limited to those who God allows?
The Bible has a unique proof of both Heaven and Hell and Jesus spoke more of Hell than He did Heaven. Anyone who knows of Jesus has been adequately warned to escape the pit of the dammed.
In my estimation, the fifth structure of doctrine is the Church; What it is? Who belongs to it? How to enter it? What to do within it? This is one doctrine that continues to be upgraded. Not to ease its operation but to be more explicit in its methods and makeup. Why would it be wrong for a church to refuse to accept a married couple into its midst, when the married couple are two men or two women? Bible doctrine would show why.
A Church who says that it only needs four or five doctrines is a compromising church. They will not stand for scriptural baptism nor communion. They will not stand for the authentic Word of God. They will be unable to scripturally regulate activities and music. They will not yield to pastoral leadership. They will suffer from continual internal misgivings and conflict.
A Bible believing church must have a doctrinal stand on all major issues that have prevailed since Jerusalem and Antioch and be willing to adjust its content to meet any and all issues that may present themselves today or tomorrow. Who would have ever dreamed that homosexuals would become pastors of some denominational churches!!!!