Rosary - Scripture

 Hail Mary, full of grace, the Lord is with you.

Luke 1:28 "And coming to her, he said, "Hail, full of grace" (NAB: "highly favored one") [kecharitomene]! The Lord is with you." 

Kecharitomene: favored by grace; suggests a permanent state of being "highly favored," thus "full of grace." God is infinite goodness. Mary is perfect created goodness, to the limit of her finite being.

Blessed art thou among women

Luke 1:41-42a "When Elizabeth heard Mary's greeting, the infant leaped in her womb, and Elizabeth, filled with the holy Spirit, cried out in a loud voice and said, "Most blessed are you among women..."

Luke 1:48 "For he has looked upon his handmaid's lowliness; behold, from now on will all ages call me blessed."

"Among all women": this Hebraicism suggests that Mary is the greatest of women. This must include Eve, whom God created immaculate, i.e. free of sin. Mary's preservation from sin by God's grace, both at her conception  and throughout life, is what makes her greater than Eve, who fell from the grace in which God created her.

Blessed is the fruit of your womb, Jesus

Luke 1:42b "and blessed is the fruit of your womb."

Jesus is Mary's fruit. Good fruit does not come from anything but a good tree (Mt. 7:17-18)! The all-holy Son of God could not be the fruit of any other tree than the Immaculate Virgin.

Holy Mary, Mother of God

Luke 1:43 "And how does this happen to me, that the mother of my Lord [Kyrios] should come to me?

Kyrios - the Greek word used by the Jews in the Septuagint Bible (Greek translation) for Yahweh, the Divine Name of God. Thus, Elizabeth is actually saying: How is it that the mother of my God should come to me. Jesus is a single person, a Divine Person, the 2nd Person of the Most Holy Trinity. To be mother of the Person Jesus is to be mother of a Person who is God. The Church gave the title Mother of God to Mary in 431 AD in order to condemn opinions of that day which denied the unity of the two natures of Christ in the Person of the Word. 

Pray for us sinners, now and at the hour of our death. Amen.

Luke 2:35 "...and you yourself a sword will pierce so that the thoughts of many hearts may be revealed."

John 2:5 "His mother said to the servers, "Do whatever he tells you."

Mary sees a need and appeals to Her Son to satisfy it. He does.

The Power of Intercessory Prayer:

The saints of the Old Law and the New Law, the 12 Patriarchs and the 12 Apostles, intercede for those on earth.

James 5:16b "the fervent prayer of a righteous man is very powerful."

Rev. 5:8 "When he took it, the four living creatures and the twenty-four elders fell down before the Lamb. Each of the elders held a harp and gold bowls filled with incense, which are the prayers of the holy ones.

The angels, too, mediate our prayers. This is taught explicitly in the Jewish book of Tobit (Tob. 12:12) accepted by Christians as inspired until Luther on his own authority rejected it. It remains part of the Catholic Bible.

Tobit 12:12   I can now tell you that when you, Tobit, and Sarah prayed, it was I who presented and read the record of your prayer before the Glory of the Lord; and I did the same thing when you used to bury the dead.
 

Rev. 8:3 "Another angel came and stood at the altar, holding a gold censer. He was given a great quantity of incense to offer, along with the prayers of all the holy ones, on the gold altar that was before the throne."

 

Vain repetition is mindless babbling not repeated prayer

The purpose of the different beads on the rosary is to count the various prayers as they are said. Unlike the Moslem prayer beads and the mantras of Buddhism, the prayers of the rosary are meant to occupy our whole being, body and soul, in meditating on the truths of the Faith. Simply to repeat prayers is not the vain repetition condemned by Christ (Mt 6:7), since He Himself repeats His prayer in the Garden three times (Mt 26:39, 42, 44) and the Psalms (inspired by the Holy Spirit) are often very repetitive (Ps 119 has 176 verses and Ps. 136 repeats the same phrase 26 times).

The faithful recitation of the rosary according to this pattern has been found by Catholics to be the door to greater gifts of prayer and holiness, as shown by the many canonized saints who have practiced and recommended the rosary, as does the Church.

Answered by Colin B. Donovan, STL