As our analysis of the Nicene Creed continues, the next section of the prayer looks at the second member of the Trinity (God the Father, God the Son, and God the Holy Spirit).
"We believe in One Lord, Jesus Christ, the Only Son of God, eternally begotten of the Father"
Simply put, we believe that Jesus is one part of the eternal God-head as a member of the Trinity that we believe in.
"God from God, Light from Light, True God from True God"
These lines are representative and descriptive of the relationship between the Father and the Son. They co-exist eternally, they are co-eternal. A better example would be a candle, the flame doesn't exist without light and the light does not exist without the flame. Even further, the Father is never without the Son, and of course, the Son is never with out the Father.
"Begotten, not made, consubstantial with the Father"
Consubstantial means to be of the substance or or essence, thus Jesus was part of and is the same the as the Father. Thus, Jesus is God.
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