Explain in detail two reasons why the trinity is important to christians? plz ! in advance

TRINITY IS A CONTROVERSIAL DOCTRINE; MANY CHRISTIANS ADMIT THEY DON'T UNDERSTAND IT,  WHILE MANY MORE CHRISTIANS DON'T UNDERSTAND IT BUT THINK THEY DO
   
ALTHOUGH THEY HAD BE HORRIFIED TO HEAR IT , MANY CHRISTIANS SOMETIMES BEHAVE AS IF THEY BELIVE IN THE THREE GODS AND  AT OTHER TIMES THEY BELIEVE IN ONLY ONE GOD.

THE BIBLE TAUGHT THAT THE CHRISTIANS WERE TO  WORSHIP FATHER AND SON AND THE HOLY SPIRITS . IT ALSO TAUGHT THAT CHRISTIANS SHOULD WORSHIP GOD
 

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