Allow me to specify what is meant by that.
It does NOT mean that Mary is not spoken of in the Bible.
It DOES mean that the piedestal that the Roman church (and the Eastern church for that matter) puts her on does not have scriptural support.
And, allow me also to direct y’alls attention to Matt 12:46-50
*Matth. 46: 50
46* As he was yet speaking to the multitudes, behold his mother and his brethren stood without, seeking to speak to him. *
47* And one said unto him: Behold thy mother and thy brethren stand without, seeking thee. *
48* But he answering him that told him, said: Who is my mother, and who are my brethren?
49 And stretching forth his hand towards his disciples, he said: Behold my mother and my brethren. *
50* For whosoever shall do the will of my Father, that is in heaven, he is my brother, and sister, and mother.
“Who is my mother?”… This was not spoken by way of slighting his mother, but to show that we are never to suffer ourselves to be taken from the service of God, by any inordinate affection to our earthly parents: and that which our Lord chiefly regarded in his mother, was her doing the will of his Father in heaven. It may also further allude to the reprobation of the Jews, his carnal kindred, and the election of the Gentiles.
You do understand that there are literal and mystical meanings in the bible, the literal meanings (some) are easy to understand, but others are easy to misinterpret as well.
For instance look at Proverbs 8: 22-31:
Verse 22. “The Lord possessed me in the beginning of his ways, before he made any thing from the beginning.”
- “I was set up from eternity and of old, before the earth was made.”
- “The depths were not as yet and I was already conceived: neither had the fountains of waters as yet sprung out.”
- “The mountains with their huge bulk had not as yet been established: before the hills I was brought forth.”
- “He had not yet made the earth, nor the rivers, nor the poles of the earth.”
- “When he prepared the heavens, I was present: when with a certain law and compass he enclosed the depths.”
- “When he established the sky above and poised the fountains of waters.”
- “When he compassed the sea with its bounds, and set a law to the waters that they should not pass their limits: when be balanced the foundations of the earth.”
- “I was with Him forming all things: and was delighted every day, playing before Him at all times.”
- “Playing in the world: and my delights were to be with the children of men.”
Literal Sense
It is understood first, that it treats of the ideas or decrees, which were in the Divine Mind before the Creation of the world; and that, in its literal sense, it speaks of the Person of the Incarnate Word and of his most holy Mother, while in its mystical sense it refers to the holy angels and prophets. For before decreeing or forming the ideals of the rest of the material creation, He formed and decreed their prototype, the most sacred humanity of Christ and of his purest Mother, and this is indicated by the first words.
Mystical Sense (Verse 22 - 23 at least)
“The Lord possessed me in the beginning of his ways.” In God there are no ways, and his Divinity does not need them: but He made use of them, in order, that by them we may know Him and that all of us creatures, who are capable of knowing Him, may tend toward Him. In this beginning, before He formed any other ideal in his mind, because He desired to create paths and open ways in his mind for the communication of the Divinity, He decreed, as a beginning, the formation of the humanity of the Word, who was to be the highway, by which the other creatures might come to the Father (Joan. 14, 6). Joined with this decree was that of his most holy Mother, through whom his Divinity was to enter into the world, becoming man and being born from Her as God and man; therefore it is said: “God possessed me” since both were possessed by his Majesty: for as to his Divinity, He was the possession, the property, and the treasure of the Father without possibility of separation, because Father and Son are One, of the same substance and Divinity with the Holy Ghost; and also as to his humanity, the Father possessed the Son; because He himself knew and decreed the plenitude of grace and glory, which He was to bestow upon it at the moment of its creation and its hypostatical union. Moreover, as this decree and possession was to be brought about by the mediation of the Mother, who was to conceive and bring forth the Word (since He did not decide to create it out of nothing, nor form his soul and body out of any other material), it followed that He possessed Her, who was to give Him the human form. Thus He possessed and claimed Her as his own in the same instant, providing with solicitude, that in the order of grace neither the human race nor any other, should have at any time a right or a part in Her. He alone retained the full right in Her as his portion, and so much his portion as the dignity of Mother required. She alone was to call Him Son, and She alone was to be called Mother, a Mother worthy of having an incarnate God for a Son. Now as all this far surpassed in dignity the whole creation, so did it also take the precedence in the mind of the supreme Creator.
“Before He made anything from the beginning, I was set up from eternity and of old.” We, in our present state, conceive this eternity of God as an interminable time. What were the things “of old,” since none had been created? It is clear that the three Persons are here spoken of, namely, that She was foreseen from the eternal ages of the Divinity, by the Beings, which alone are ancient, namely, the indivisible Trinity (since all the rest, having a beginning, are recent), that She was foreseen when only the ancient Uncreated was, and before any ideals of the future creation were formed. Between these two extremes intervened the ideal of the hypostatic union which was to be verified
ad extra through the intervention of the most holy Mary. Both were ordained together, immediately next to God and before any other creature, and it was the most wonderful decree ever passed or ever to be passed. The first and most admirable image in the mind of God, next to the eternal generation, was that of Christ and next to it, that of his Mother.
from Ven. Mary of Agreda