"John (یحیی) in the Quran is a prophet who was born from a great Israelite prophet, namely Zechariah. He has been given the title John the Baptist (یوحنا المعمدان). John was the son of Zechariah and Elizabeth (ايشاع) and was born miraculously, as his father was very old and his mother was barren. In fact, God had willed it, so it happened. God mentions his name five times in the Quran."
https://islam4u.pro/blog/john-in-the-quran/
"Apart from Jesus Christ, John the Baptist is probably the most theologically significant figure in the Gospels. As was the case with Jesus, his birth was meticulously recorded ( Luke 1:5-25 )."
https://www.biblestudytools.com/dictionary/john-the-baptist/#google_vignette
"Jesus came from Galilee to be baptized by John in the River Jordan. John rightly recognized that the sinless Son of God needed no baptism of repentance and that he was certainly not worthy to baptize his own Savior. But Jesus answered John’s concern by requesting baptism "to fulfill all righteousness," meaning that He was identifying Himself with sinners for whom He would ultimately sacrifice Himself, thereby securing all righteousness for them (2 Corinthians 5:21). In humility, John obeyed and consented to baptize Jesus (Matthew 3:13–15). As Jesus came up out of the water, “heaven was opened, and he saw the Spirit of God descending like a dove and alighting on him. And a voice from heaven said, ‘This is my Son, whom I love; with him I am well pleased’” (verses 16–17)."
https://www.gotquestions.org/life-John-Baptist.html
"Mandaeans (Arabic: المندائيون al-Mandāʾiyyūn), also known as Mandaean Sabians (الصابئة المندائيون al-Ṣābiʾa al-Mandāʾiyyūn) or simply as Sabians (الصابئة al-Ṣābiʾa),[b] are an ethnoreligious group who are followers of Mandaeism. They believe that John the Baptist was the final and most important prophet. They may have been among the earliest religious groups to practice baptism, as well as among the earliest adherents of Gnosticism, a belief system of which they are the last surviving representatives today."
https://en.wikipedia.org/wiki/Mandaeans
"the Mandaeans. Also called Sabians, they are followers of the last Gnostic religion to survive continuously from ancient times down to the present day.
Gnostic religions view the material world as the product of a mistake in the heavenly realm, the creation of one or more inferior divine beings rather than the supreme God."
https://theconversation.com/this-tiny-minority-of-iraqis-follows-an-ancient-gnostic-religion-and-theres-a-chance-they-could-be-your-neighbors-too-160838
"The Mandaeans are probably the only remaining original Gnostics left in existence today. While it is notable that there exist many references to a 'False Messiah' in the early Gnostic texts of the Mandaeans (Nazoreans), none of these ever refer to him as Jesus or Jesus Christ."
https://www.nazoreans.com/mandaean_texts.html
"The demiurge (Greek demiurgos,[1] “craftsman”[2]) is the being who created the world in Gnosticism. The Gnostics identified him with the god of the Old Testament. The Gnostic scriptures portray him as ignorant, malicious, and utterly inferior to the true God who sent Christ to earth to save humankind from the demiurge’s evil world."
https://gnosticismexplained.org/the-gnostic-demiurge/
"She did not find her partner, and she considered this without the spirit’s consent and without the knowledge of her partner. Nonetheless, she gave birth. And because of the invincible power within her, her thought was not an idle thought. Something came out of her that was imperfect and different in appearance from her, for she had produced it without her partner. It did not resemble its mother and was misshapen.
When Sophia saw what her desire had produced, it changed into the figure of a snake with the face of a lion. Its eyes were like flashing bolts of lightning. She cast it away from her, outside that realm so that none of the immortals would see it. She had produced it ignorantly.
She surrounded it with a bright cloud and put a throne in the middle of the cloud so that no one would see it except the holy spirit, who is called the mother of the living. She named her offspring Yaldabaoth."
"When he saw creation surrounding him, and the throng of angels around him who had come forth from him, he said to them, I am a jealous god and there is no other god beside me.
But by announcing this, he suggested to the angels with him that there is another god. For if there were no other god, of whom would he be jealous?"
http://www.gnosis.org/naghamm/apocjn-meyer.html
"The great angel Eleleth, understanding, spoke to me: “Incorruptibility inhabits limitless realms. Sophia, who is called Pistis,wanted to create something, alone, without her partner, and what she created was celestial.
“A veil exists between the world above and the realms below, and shadow came into being beneath the veil. That shadow became matter, and that shadow was projected apart. And what she had created came to be in matter, like an aborted fetus. It assumed a shape molded out of shadow, and became an arrogant beast resembling a lion. It was androgynous, as I have already said, because it derived from matter.
“Opening his eyes he saw a vast quantity of endless matter, and he turned arrogant, saying, ‘I am god, and there is no one but me.’
“When he said this, he sinned against all. And a voice came from above the realm of absolute power, saying, ‘You are wrong, Samael,’ that is, god of the blind.
“And he said, ‘If any other thing exists before me, let it become visible to me!’ Immediately Sophia pointed her finger and introduced light into matter, and she pursued it down to the region of chaos. And she returned up to her light. Once again darkness returned to matter.
“This ruler, by being androgynous, made himself a vast realm, an endless precinct. And he contemplated creating offspring for himself, and created seven offspring, androgynous like their parent.
“And he said to his offspring, ‘I am the god of all.’
“Zoe the daughter of Pistis Sophia shouted, saying to him, ‘You are wrong, Sakla’ (for which the alternate name is Yaldabaoth)."
http://www.gnosis.org/naghamm/Hypostas-Barnstone.html
"And when Pistis Sophia desired to cause the thing that had no spirit to be formed into a likeness and to rule over matter and over all her forces, there appeared for the first time a ruler, out of the waters, lion-like in appearance, androgynous, having great authority within him, and ignorant of whence he had come into being. Now when Pistis Sophia saw him moving about in the depth of the waters, she said to him, "Child, pass through to here," whose equivalent is 'yalda baoth'.
Since that day, there appeared the principle of verbal expression, which reached the gods and the angels and mankind. And what came into being as a result of verbal expression, the gods and the angels and mankind finished. Now as for the ruler Yaltabaoth, he is ignorant of the force of Pistis: he did not see her face, rather he saw in the water the likeness that spoke with him. And because of that voice, he called himself 'Yaldabaoth'."
http://www.gnosis.org/naghamm/origin.html