This sola signifies that “there is one God, and one mediator between God and men, the man Christ Jesus”. – 1 Timothy 2:5 (KJV)
The sola contained a resistance against the idea that Mary was a mediator of equal worth of Jesus. In no way are we to see her as a replacement or a completion of the mediatory work of Christ.
In many Roman-Catholic churches, you find a statue of Christ on one pedestal and a statue of Mary on another, which seems to represent that Christ and Mary share equal roles.
This is not the case, biblically speaking. Mary is not a mediatrix equal to the mediator. She is certainly not an option to bring to us salvation (see below).
MARY IS NOT EQUAL TO THE MEDIATOR. SHE CAN SURELY NOT GIVE SALVATION!
This video, made by a Roman-Catholic himself, makes it clear, how far we can go at max (except for that she has no “maternal role” towards us):
We are allowed to call her blessed, when speaking of her, for the fact that she received Christ Incarnate (John 1:14), the Savior (Luke 2:11)… but in no way are we to see her as a replacement or a completion of the mediatory work of Christ.
AS IT IS WRITTEN:
“Jesus is the stone you builders rejected, which has become the cornerstone. Salvation is found in no one else, for there is no other name under heaven given to mankind by which we must be saved.”
– Acts 4:11-12 (NIV)
“Wherefore he is able also to save them to the uttermost that come unto God by him, seeing he ever liveth to make intercession for them.
For such an high priest became us, who is holy, harmless, undefiled, separate from sinners, and made higher than the heavens;
Who needeth not daily, as those high priests, to offer up sacrifice, first for his own sins, and then for the people’s: for this he did once, when he offered up himself.”
– Hebrews 7:25-27 (KJV)
Note 1: She is not “ever virgin” as the Roman-Catholic church teaches.
The Bible teaches in Matthew:
“and [Joseph] did not know her TILL she brought forth her son–the first-born, and he called his name Jesus.”
– Matthew 1:25 (YLT, emphasis mine, added “[Joseph]”)
Note 2: Mary does not like to be called “the queen of heaven” as that is the name for an idol in the Bible. (Jeremiah 7:18, Jeremiah 44:17-25)
God and Mary never intended that she would get so much glory, as it draws away attention from Christ.
Let’s put it this way: Mary has received too much attention, attention she does not like. As a virtuous Christian woman, she wants you to pray directly to Jesus.
She would be carrying this sign:
Picture source: unknown
And she would say together with me:
She believed and obeyed the message of angel Gabriel who claimed that:
“She will give birth to a son, and you are to give him the name Jesus, because HE WILL SAVE HIS PEOPLE FROM THEIR SINS.”
– Matthew 1:21 (NIV, emphasis mine)
Just my personal tought: Why make it difficult and pray to Mary or other saints, as we are allowed to pray to Christ directly (Hebrews 4:16)? Is God in the flesh (John 1:14), Who died on our behalf (John 3:16) and became our High Priest (Hebrews 4:14; Hebrews 7:25-27) and Lamb (John 1:29) not good enough as the only necessary Mediator? (1 Timothy 2:5) Do we need another name to be saved? Is there another name to be saved? (Acts 4:12)
In the following part Erasmus, who chose to stay in the Roman-Catholic church, but nevertheless debunked many errors that can be found there until this day, is making fun of the cult of saint worship that is distracting people away from the true God and the truth which is contained within the Bible.
He makes it clear that it is best to call on God Himself (as in Solus Christus):
“Naufragium exposes the Dangers of those that go to Sea; the various and
foolish Superstition of Mariners. An elegant Description of a Storm. They indeed run a Risque that throw their valuable Commodities into the Sea. Mariners impiously invoke the Virgin Mary, St. Christopher, and the Sea itself. Saints are not to be pray’d to, but God alone.
But did you call upon none of the Saints for Help?
No, not so much as that neither.
Because Heaven is a large place, and if I should recommend my safety to any saint, as suppose, to St. Peter, who perhaps, would hear soonest, because he stands at the door; before he can come to God Almighty, or before he could tell him my condition, I may be lost.
What did you do then?
I e’en went the next way to God the Father, saying, our Father which art in Heaven. There’s none of the saints [that] hears sooner than he does, or more readily gives what is ask’d for.”
– Desiderius Erasmus, The Shipwreck (Naufragium) (2 parts taken from the text, added “[that]”)
The following study by David Bercot is quite thorough:
“(…) our duty is to pray to the Most High God alone, and to the Only-begotten, the First-born of the whole creation, and to ask Him as our High Priest to present the prayers which ascend to Him from us, to His God and our God, to His Father and the Father of those who direct their lives according to His word.”
– Origen, Contra Celsus, Book VIII, chapter XXVI