
Doofesh
As a Christian, you may be interested to know the following information:
There existed one character only: Al-Masseeh
It was Allaah who named his Prophet and Messenger: AL-MASSEEHU EESSA IBNU MARYAM
There is no evidence that the name originates elsewhere other than in The Quraan
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(Remember) when the Angels said: "O Maryam! Verily, Allaah gives you the glad tidings of a Word from Him, his name will be AL-MASSEEHU EESSA IBNU MARYAM, held in honor in this world and in the Hereafter, and will be one of those who are brought to a vicinity of Allaah." He will speak to the people in the cradle and in maturity and will be of the righteous."
There existed one character only: Al-Masseeh
It was Allaah who named his Prophet and Messenger: AL-MASSEEHU EESSA IBNU MARYAM
There is no evidence that the name originates elsewhere other than in The Quraan
-----------------------------------------------------------------------------------------------------------------
(Remember) when the Angels said: "O Maryam! Verily, Allaah gives you the glad tidings of a Word from Him, his name will be AL-MASSEEHU EESSA IBNU MARYAM, held in honor in this world and in the Hereafter, and will be one of those who are brought to a vicinity of Allaah." He will speak to the people in the cradle and in maturity and will be of the righteous."

Doofesh
The two characters in this case are: Maryam, the mother of Eessa, and Eessa, the son of Maryam.
The tale of Maryam:
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Relate (O Muhammad) in the Book (the story of) Maryam, when she withdrew from her family to an eastern place.
She (Maryam) placed a screen (to screen herself) from them; then We (Allaah) sent to her Our angel (Jibreel), and he appeared before her as a man in all respects.
She (Maryam) said: "I seek refuge from thee with (Allaah) Most Gracious: (come not near) if thou dost fear Allaah."
He (Angel) said: "Nay, I am only a Messenger from thy Lord (Allaah), (to announce) to thee the gift of a holy son."
She (Maryam) said: "How shall I have a son, seeing that no man has touched me, and I am not unchaste?"
He (Angel) said: "So (it will be): thy Lord (Allaah) saith, 'That is easy for Me: and We (Allaah - wish) to make of him a Sign unto men and a Mercy from Us': it is a matter (so) decreed."
So she (Maryam) conceived of him (Eessa son of Maryam), and she retired with him to a remote place.
And the pains of childbirth drove her (Maryam) to the trunk of a palm tree: she cried (in her anguish) "Ah! Would that I had died before this! Would that I had been a thing forgotten and out of sight!"
But (a voice) cried to her from beneath her: "Grieve not! For thy Lord (Allaah) hath provided a rivulet beneath thee;
"And shake towards thyself (O Maryam) the trunk of the palm-tree; it will let fall fresh, ripe dates upon thee.
"So eat and drink and cool (O Maryam thine) eye. And if thou dost see any person, say, 'I have vowed a fast to (Allaah) Most Gracious, and this day will I enter into no talk with any human being'"
(Then) She (Maryam) brought him (babe) to her people, carrying him (in her arms). They said: "O Maryam! Truly an amazing thing hast thou brought!
"O sister of Haroon! Thy father was not a man of evil, nor thy mother a woman unchaste!"
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The tale of Eessa:
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(Then) She (Maryam) brought him (the baby) to her people, carrying him (in her arms). They said: "O Maryam! Truly an amazing thing has you brought!
O sister of Haroon! Your father was not a man of evil, nor thy mother a woman unchaste!
But she (Maryam) pointed to the babe. They said: "How can we talk to one who is a child in the cradle?
He (Eessa ibnu Maryam) said: "I am indeed a worshiper of Allaah: He has given me revelation and made me a prophet;
And He (Allaah) hath made me blessed wheresoever I am, and has enjoined on me Prayer and Charity as long as I live:
(Allaah) has made me kind to my mother, and not overbearing or miserable;
So Peace is on me the day I was born, the day that I die, and the day that I shall be raised up to life (again)!
That is Eessa ibnu Maryam: (it is) a statement of truth, about which they (vainly) dispute.
The tale of Maryam:
-----------------------------
Relate (O Muhammad) in the Book (the story of) Maryam, when she withdrew from her family to an eastern place.
She (Maryam) placed a screen (to screen herself) from them; then We (Allaah) sent to her Our angel (Jibreel), and he appeared before her as a man in all respects.
She (Maryam) said: "I seek refuge from thee with (Allaah) Most Gracious: (come not near) if thou dost fear Allaah."
He (Angel) said: "Nay, I am only a Messenger from thy Lord (Allaah), (to announce) to thee the gift of a holy son."
She (Maryam) said: "How shall I have a son, seeing that no man has touched me, and I am not unchaste?"
He (Angel) said: "So (it will be): thy Lord (Allaah) saith, 'That is easy for Me: and We (Allaah - wish) to make of him a Sign unto men and a Mercy from Us': it is a matter (so) decreed."
So she (Maryam) conceived of him (Eessa son of Maryam), and she retired with him to a remote place.
And the pains of childbirth drove her (Maryam) to the trunk of a palm tree: she cried (in her anguish) "Ah! Would that I had died before this! Would that I had been a thing forgotten and out of sight!"
But (a voice) cried to her from beneath her: "Grieve not! For thy Lord (Allaah) hath provided a rivulet beneath thee;
"And shake towards thyself (O Maryam) the trunk of the palm-tree; it will let fall fresh, ripe dates upon thee.
"So eat and drink and cool (O Maryam thine) eye. And if thou dost see any person, say, 'I have vowed a fast to (Allaah) Most Gracious, and this day will I enter into no talk with any human being'"
(Then) She (Maryam) brought him (babe) to her people, carrying him (in her arms). They said: "O Maryam! Truly an amazing thing hast thou brought!
"O sister of Haroon! Thy father was not a man of evil, nor thy mother a woman unchaste!"
==============
The tale of Eessa:
-------------------------
(Then) She (Maryam) brought him (the baby) to her people, carrying him (in her arms). They said: "O Maryam! Truly an amazing thing has you brought!
O sister of Haroon! Your father was not a man of evil, nor thy mother a woman unchaste!
But she (Maryam) pointed to the babe. They said: "How can we talk to one who is a child in the cradle?
He (Eessa ibnu Maryam) said: "I am indeed a worshiper of Allaah: He has given me revelation and made me a prophet;
And He (Allaah) hath made me blessed wheresoever I am, and has enjoined on me Prayer and Charity as long as I live:
(Allaah) has made me kind to my mother, and not overbearing or miserable;
So Peace is on me the day I was born, the day that I die, and the day that I shall be raised up to life (again)!
That is Eessa ibnu Maryam: (it is) a statement of truth, about which they (vainly) dispute.