Dear Friend,
for your kind information the Trinity doctrine (three Gods) Brahmma, vishnu, sivan is the doctrine developed only in the 4th century A.d. in Vaishnavism. The another is Saivishm, I hope you know this. This two religion came to be practised in India only during 4th Century AD.
According to Vaishanavism The father is Sivan(MALE), vishnu is (mother) and lord Iyappa is son. In saivism the father is Sivan, sakthi is mother and Lord muruga or Pilliar(lord ganapathy) is the son.In christianity Father is God,mother is Holy Spirit and the son is Jesus.
In short there is no any deviation, religious denomination between us and we are all one family and we have only One GOD, we are all breothers and sisters.