First Joyful Mystery. The Annunciation.

The angel Gabriel was sent by God to a town in Galilee called Nazareth, to a virgin betrothed to a man named Joseph, of the House of David; and the virgin's name was Mary. He went in and said to her, 'Rejoice, you who enjoy God's favour! The Lord is with you... Look! You are to conceive in your womb and bear a son, and you must name him Jesus.' Mary said, 'You see before you the Lord's servant, let it happen to me as you have said.'
(Lk 1:26-28,31,38)

Second Joyful Mystery. The Visitation.

Mary set out and went as quickly as she could into the hill country to a town in Judah. She went into Zechariah's house and greeted Elizabeth. Now it happened that as soon as Elizabeth heard Mary's greeting, the child leapt in her womb and Elizabeth was filled with the Holy Spirit. She gave a loud cry and said, 'Of all women you are the most blessed, and blessed is the fruit of your womb.'
(Lk 1:39-42)

Third Joyful Mystery. The Birth of Jesus.

Now it happened that, while they were there, the time came for her to have her child, and she gave birth to a son, her first-born. She wrapped him in swaddling clothes and laid him in a manger because there was no room for them in the living-space.
(Lk 2:6-7)

Fourth Joyful Mystery. The Presentation.

When the day came for them to be purified in keeping with the Law of Moses, they took him up to Jerusalem to present him to the Lord, observing what is written in the Law of the Lord: Every first-born male must be consecrated to the Lord. Simeon blessed them and said to Mary his mother, '...And a sword will pierce your soul too.'
(Lk 2:22-23,34-35)

Fifth Joyful Mystery. The Finding in the Temple.

It happened that, three days later, they found him in the Temple, sitting among the teachers, listening to them, and asking them questions; and all those who heard him were astounded at his intelligence and his replies. They were overcome when they saw him, and his mother said to him, 'My child, why have you done this to us? See how worried your father and I have been, looking for you.' He replied, 'Why were you looking for me? Did you not know that I must be in my Father's house?'
(Lk 2:46-49)