During the first century, when Revelation is thought to have been written, stigmata were not as mysterious as they are today. Stigmata—from which the word stigma comes from, refers to leaving a mark by cutting or branding the skin. The stigmata--or mark, on the hand or forehead, were well known to the ancients as slaves, soldiers and pagan worshippers all wore stigmata. In the case of religious devotees the mark was sometimes a pagan god’s particular number; slaves were made to wear their master’s emblem; and soldiers usually bore the emperor’s name or mark on their hand.
There are several references to marks, or stigmata in both the Old and New Testament as well as the Quran and the marks are not only for apostates, but there are instances where God marks out or puts seals on both believers and non-believers, and is even said to number all of them exactly.
But the LORD said to him, "Not so; if anyone kills Cain, he will suffer vengeance seven times over." Then the LORD put a mark on Cain so that no one who found him would kill him.
Now the glory of the God of Israel went up from above the cherubim, where it had been, and moved to the threshold of the temple. Then the LORD called to the man clothed in linen that had the writing kit at his side
and said to him, "Go throughout the city of Jerusalem and put a mark on the foreheads of those who grieve and lament over all the detestable things that are done in it."
Then I saw another angel coming up from the east, having the seal of the living God. He called out in a loud voice to the four angels who had been given power to harm the land and the sea:
"Do not harm the land or the sea or the trees until we put a seal on the foreheads of the servants of our God."
He also forced everyone, small and great, rich and poor, free and slave, to receive a mark on his right hand or on his forehead,
so that no one could buy or sell unless he had the mark, which is the name of the beast or the number of his name.
This calls for wisdom. If anyone has insight, let him calculate the number of the beast, for it is man's number. His number is 666
A third angel followed them and said in a loud voice: "If anyone worships the beast and his image and receives his mark on the forehead or on the hand,
he, too, will drink of the wine of God's fury, which has been poured full strength into the cup of his wrath. He will be tormented with burning sulfur in the presence of the holy angels and of the Lamb.
And the smoke of their torment rises for ever and ever. There is no rest day or night for those who worship the beast and his image, or for anyone who receives the mark of his name."
Al-Baqara (The Cow) 2:273
[And give] unto [such of] the needy who, being wholly wrapped up in God's cause, are unable to go about the earth [in search of livelihood]. He who is unaware [of their condition] might think that they are wealthy, because they abstain [from begging]; [but] thou canst recognize them by their special mark: they do not beg of men with importunity. And whatever good you may spend [on them], verily, God knows it all.
Al-'Imran (The Family of 'Imran) 3:140
If misfortune touches you, similar misfortune has touched people as well; for it is by turns that We apportion unto men such days: and to the end that God might mark out those who have attained to faith, and choose from among you such as bear witness to the truth - since God does not love evildoers -
Al-'Imran (The Family of 'Imran) 3:166-167
and all that befell you on the day when the two hosts met in battle happened by God's leave, so that He might mark out the believers,
And mark out those who were tainted with hypocrisy and, when they were told, "Come, fight in God's cause" - or, "Defend yourselves" - answered, "If we but knew [that it would come to a] fight, we would indeed follow you." Unto apostasy were they nearer on that day than unto faith, uttering with their mouths something which was not in their hearts, the while God knew fully well what they were trying to conceal
Al-Ma'idah (The Table) 5:94
O YOU who have attained to faith! Most certainly God will try you by means of the game which may come within the reach of your hands and your weapons, so that God might mark out those who fear Him although He is beyond the reach of human perception. And as for him who, after all this, transgresses the bounds of what is right--grievous suffering awaits him!
Al-A'raf (The Heights) 7:46
And between the two there will be a barrier. And there will be persons who were endowed with the faculty of discernment [between right and wrong], recognizing each by its mark. And they will call out unto the inmates of paradise, "Peace be upon you!"--not having entered it themselves, but longing [for it].
Al-A'raf (The Heights) 7:48
And they who [in life] had possessed this faculty of discernment will call out to those whom they recognize by their marks, saying: "What has your amassing [of wealth] availed you, and all the false pride of your past?
Maryam (Mary) 19:93-95
Not one of all [the beings] that are in the heavens or on earth appears before the Most Gracious other than as a servant:
indeed, He has full cognizance of them, and has numbered them with [exact] numbering;
and every one of them will appear before Him on Resurrection Day in a lonely state.
Al-'Ankabut (The Spider) 29:3
Yea, indeed, We did test those who lived before them; and so, [too, shall be tested the people now living: and] most certainly will God mark out those who prove themselves true, and most certainly will He mark out those who are lying.
Al-'Ankabut (The Spider) 29:11
… and most certainly will God mark out those who have attained to faith, and most certainly will He mark out the hypocrites.
Now had We so willed, We could have shown them clearly to thee, so that thou wouldst know them for sure as by a visible mark: but thou wilt most certainly recognize them by the tone of their voice. And God knows all that you do.
And most certainly We shall try you all, so that We might mark out those of you who strive hard [in Our cause] and are patient in adversity: for We shall put to a test [the truth of] all your assertions.
Ar-Rahman (The Most Beneficent) 55:41
All who were lost in sin shall by their marks be known, and shall by their forelocks and their feet be seized!
Al-Hadid (Iron) 57:25
Indeed, did We send forth Our apostles with all evidence of truth; and through them We bestowed revelation from on high, and [thus gave you] a balance [wherewith to weigh right and wrong], so that men might behave with equity; and We bestowed from on high iron, in which there is awesome power as well as benefits for man: and so that God might mark out those who would stand up for Him and His Apostle, even though He is beyond the reach of human perception. Verily, God is Powerful, Almighty!
Al-Qalam (The Pen)
68:16 سَنَسِمُهُ عَلَى الْخُرْطُومِ
68:16 We shall brand him on the nose [muzzle, snout]!
My only comment is --If you want people to pay attention You have to write more clearly.