Define the importance of the doctrine of the Trinity for the Christian faith Analyze the history and development of that doctr

Basically Christian understanding concerning the Trinity starts from the two elements, namely His essense and His acts, which are the way of functioning of the three Persons in the Trinity. Human beings thus far haven’t been able to have a frame of reference in order to explain the Mystery of Trinity and can never do that also. But only thing we can know is Logic cannot transcend divinity. If man’s knowledge is like a drop of water, then the knowledge of God would be like an ocean which transcends all limits. Thus we don’t have the eligibility, neither have we the capability to comprehend His mystery. His true entity no one can ever understand. Gregory of Nazianzen expresses God as, One God, One in diversity, diverse in Unity, wherein is a marvel (Second Theological Oration par. 1). We believe in His essence because we experience his energies. Rational bases even if are good, not always vital for stability of our faith. Still we have Scriptural resources, and historic theological literatures which definitely help us to grasp enough about the mystery of the Triune God. Only whatever is necessary for our finite understanding is revealed by God. In this paper, the writer would try to analyse how important the doctrine of Trinity is for the Christians, further looking through the historical development of the doctrine and the firmness of the doctrine in the minds of the Christians. IMPORTANCE OF THE DOCTRINE OF THE TRINITY: As we said at the outset, Christian faith balances upon the reality of God, His Triune existence. The doctrine elaborates the reality of God and explains the mysteries. It reveals God’s personality. It says that God is not simply a supernatural entity but He is a person with a personality. It brings into light the function of the Godhead in three streams- The Father, The Son, and The Holy Spirit, explaining their acts in history of humanity and the sole focus to redeem humanity from the clutches of sin and death. The Father, the first Person in the Godhead is the sender of the Son who came down to earth, sacrificing all the glory of the Heaven, to offer Himself as a vicarious sacrifice for the sins of the entire humanity. The Father reveals the grandeur of His love for humanity through His Son. The Son is the second Person in the Godhead Who alone was qualified to do the task. He finished His work of bringing redemption for man by defeating death and overpowering the effect of sin. Moreover He became an ideal for being obedient, which was the very mistake of Man that brought sin into the world. Holy Spirit is the third Person in the Godhead Who is the transformer of human heart by the planting of Christ into his/her life through penitence, making him/her return from sin. He guides a person in the spiritual journey in this life making the person more like Christ every day. Without the Holy Spirit, the redemption offered by Christ cannot be experienced fully. Redemption, therefore, in historic Christianity is initiated by the Father (Galatians 4:4), accomplished through the Son (1 Peter 3:18), and is applied by the Holy Spirit (Titus 3:5) (Samples par.3). Thus the whole process of redemption which is the core of God’s mission in this world is not feasible without the Trinity i.e. Father, Son and the Holy Spirit all together. Trinitarian concept of God also solves another problem. According to St. Augustine, only the God Who is united in His plural nature can be loving. Unless God is plural in Himself and is solitary, then the