Mary As Co-Redeemer
Theologians in the Catholic Church have stated that because Mary also suffered during Jesus’ crucifixion, she became a “co-redeemer” with the Lord. The Catholic church has specified that because Mary suffered along with Jesus, she also participated in His efforts to bring salvation to all people; therefore, she is called a “co-redemptrix” with Jesus.
Pope Leo the 8th said this regarding Mary:
“Mary is the intermediary through whom is distributed unto us this immense treasure of mercies gathered by God, for mercy and truth were created by Jesus Christ. Thus as no man goeth to the Father but by the Son, so no man goeth to Christ but by His Mother.”
The Bible nowhere describes Mary as participating in the work of salvation, but calls her Blessed or happy that she was given the great honor of serving God by being His maidservant.
For detailed information on this important subject, please see: Prophecy 99
This is a very tragic position to take in the redemption which Jesus paid such a high cost to purchase for us. Although Mary truly suffered herself for her Son’s death, she took no part in the redemption of all mankind. That work and the supreme sacrifice which was made, can only be credited to Jesus. No human being, including Mary, can ever claim that they had anything to do with the salvation that Jesus died to make possible for us.
…when He had by Himself purged our sins, sat down at the right hand of the Majesty on high… ~Hebrews 1:3
Although His mother, John, and two other Mary’s were present at Jesus crucifixion, they were not participants in the suffering that He endured which purchased our salvation. The rest of Jesus’ friends and followers were afar off, watching Jesus die, in apparent embarrassment for His condemnation and death by the Romans.
See The Chapter: “Errors of the Catholic Church: Mary as Co-Redemptrix”
 1. Mark Miravalle, 1993 “With Jesus”: the story of Mary Co-redemptrix ISBN 1-57918-241-0 page 11
2. Schmaus, Mariologie, München, 1955, 328
 Leo XIII, encyclical Octobri Mense 4. Ott, Dogmatics, Mariology § 7 even thinks that, in spite of uncertain evidence in the Sources of Faith, a dogmatic definition does not seem impossible.