Must Christians know God the Father, the Son, and the Holy Spirit as one God, and confess their faith in all of them? Yes. The reason is as follows.
God the Father, the Son, and the Holy Spirit all led the ministry of creation and gave life to mankind. But God the Father is the Father of the Holy Son. The Son fulfilled the ministries of the remission of sin—that is, He was baptized by John and crucified to save mankind from sin. The Holy Spirit took the task of bearing witness to those who believe that the baptism of Jesus and the blood of the Cross fulfilled the works of the atonement of mankind.
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The confession of the faith in the Apostles’ Creed is the declaration of the Apostles’ faith that affirms how exactly they believe in God....
The name Jesus, “Ιησούς (iesous)” in Greek, is originated from Hebrew name ישוע (yeh-ho-shoo’-ah(, meaning “Jehovah is salvation.” Christ is משיח (mashiyach) in Hebrew...
To reemphasize once again, it is those who believe in the Word of God in their hearts who can be filled with the Holy...