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‘Watch your life and doctrine closely. Persevere in them, because if you do, you will save both yourself and your hearers’ (1 Timothy 4:16).

‘For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear’ (2 Timothy 4:3).

 ‘He must hold firmly to the trustworthy message as it has been taught, so that he can encourage others by sound doctrine and refute those who oppose it’ (Titus 1:9).

‘You must teach what is in accord with sound doctrine’ (Titus 2:1).


The Word of God tells us that we must pay careful attention to what we believe, what we preach and teach, and what doctrines we allow to be taught and to influence our lives. Unfortunately, I have found a number of Christians who have spoken against the importance of understanding doctrine; as if our doctrine doesn’t matter as long as we maintain love. Such comments often come from those who are not activity involved in evangelism; therefore they are content in their own Christian walk and somewhat unaware of how seriously people both in the world and within the church have been influenced by false doctrine. This kind of relaxed thinking needs to be challenged.

There are certain doctrines that you have to believe; otherwise you are not a true Christian. Since many Christians are doctrinally weak and have not been properly discipled, they don’t understand some of even the basic doctrines and don’t have answers to some very important issues. Many Christians have then been deceived by false prophets and cultic heresies. They end up promoting doctrinal error, which could have been avoided if they knew the Word of God and were given a good foundation in Biblical understanding.

Biblical theology is necessary for correcting error. Proper belief brings proper action and most importantly, a proper walk with God. Our Christian faith has to be built upon the right foundation. We therefore need a firm hold upon the great fundamental doctrines of the Holy Scriptures. In recent times sections of the Christian Church have become lax in both studying and upholding doctrine. Many people believe all kinds of error because they have no theological foundation.

Christians who do not have a basic understanding of theology do not know how to defend their faith against the onslaught of false teachings that are promoted by the cults. Many Christians are still seeking reassurance about their faith because they don’t know what to believe on a number of key issues. While I am not seeking to provide all the answers here, I am seeking to provide a beginners course on theology. I call this the evangelist’s theology because I preach from the point of view of being an evangelist, who has the aim of winning souls to Christ.

From the early days of my street evangelism I found that there were two specific doctrines that God called me to uphold against the onslaught of error: 1) The Holy Trinity – the Father and the Son and the Holy Spirit; 2) Eternal Punishment – the reality of Hell. If you understand these two doctrines and the issues that arise from this, you will have a good foundation for understanding the Bible and leading people to salvation through faith in the Lord Jesus Christ.

Contend For The Faith Once For All Entrusted To The Saints (Jude 3)

An in-depth study of the Holy Trinity

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