Elizabeth the Mother of John the Baptist:
"And how does this happen to me, that the mother of my Lord should come to me?"
"But when the fullness of time had come, God sent his Son, born of a women..."
"When finally she did give birth, it was as if a great ciborium had opened, and she was holding in her fingers the Guest Who was also the Host of the world, as if to say, "Look, this is the Lamb of God; look this is He Who takes away the sins of the world." Life of Christ
Dogmatic Constitution on the Church, Vatican Council II:
"This divine mystery of salvation is revealed to us and continued in the Church, which the Lord established as His body. Joined to Christ the Head and in the unity of fellowship with all His saints, the faithful must in the first place reverence the memory "of the glorious ever Virgin Mary, Mother of our God and Lord Jesus Christ"" Lumen Gentium 52
Catechism of the Catholic Church:
Called in the Gospels "the mother of Jesus", Mary is acclaimed by Elizabeth, at the prompting of the Spirit and even before the birth of her son, as "the mother of my Lord". In fact, the One whom she conceived as man by the Holy Spirit, who truly became her Son according to the flesh, was none other than the Father's eternal Son, the second person of the Holy Trinity. Hence the Church confesses that Mary is truly "Mother of God" (Theotokos)." (CCC 495)
Pope John Paul II:
"In the disciple's eyes, as they gathered after the ascension, the title "Mother of Jesus" acquires its full meaning. For them, Mary is a person unique in her kind: she received the singular grace of giving birth to the Savior of humanity; she lived for a long while at his side; and on Calvary she was called by the Crucified One to exercise a "new motherhood" in relation to the beloved disciple and, through him, to the whole Church. Mary Is The Virgin Mother of God 13September, 1995