[annalex]

She is never referred to as [Mother of God] in the Bible

First, that is what she is, for Jesus is God. Second, Luke 1:43. Third, the Holy Scripture is not a table of ranks and titles.

[BipolarBob]

First, that is what she is, for Jesus is God.

Jesus was also human. She was mother of the human side of Jesus.

Luke 1:43 See above.

Third, the Holy Scripture is not a table of ranks and titles.

From whence do we know that Jesus is the Messiah? The King of Kings if not in the Bible. Regardless Peter was an Apostle and there is no indication his ranking was any higher than the others because like you said "the Holy Scripture is not a table of ranks and titles".

[jodyel]

“the Holy Scripture is not a table of ranks and titles.”

Nope, but funny how Catholicism is!