The Qur’ān rejects anyone called sons of God, in this context we’re not speaking of biologically being God’s children. But the God of the Bible wants a relationship with His creation, the below verses in the Qur’ān say men and women can only be slaves of Allah. *Note we are distinguishing between Yahweh the true God and Allah the false god of Islam.
Qur’ān says Jews and Christians are not the sons of Allah
Here in [5:18] the Qur’ān is trying to prove that Jews and the Christians are not “sons” of Allah (take notice that we don’t believe in Allah, we believe in Yahweh), this gives the idea that Jews and Christians are claiming to be the literally children of God. It’s a strawman argument as we don’t believe we are “biological” children of God. Those who are saved are adopted into the family of God (Romans 9:4).
“”We are the children of Allah and His beloved.” Say, “Then why does He punish you for your sins?” Rather, you are human beings from among those He has created. …”
The Qur’ān tries to insinuate that Allah and Yahweh are the same but they are not, it goes so far as to say that the only relationship we have with God is as a slave and nothing more.
In verses [19:88-93] there’s a double message (1) it’s an attack on the Son of God Jesus Christ and His divinity as well as (2) a renouncement of anyone being called a child of God and all we are is slaves.
And they say, “The Most Merciful has taken [for Himself] a son.” You have done an atrocious thing. … That they attribute to the Most Merciful a son. And it is not appropriate for the Most Merciful that He should take a son. … that he comes to the Most Merciful as a servant.
Let’s bust their false prophet, Muhammad said he believes in the Torah, and the Qur’ān confirms the previous scriptures in the Torah and Injil [sūrat l-ṣāfāt 37:37].
This is an apparent contradiction of the Torah and Injil as we will soon see.
Torah says Israelites are the sons of God
The Qur’ān claims it confirms the previous scriptures which came before it according to [sūrat fāṭir 35:31], now here’s where Muslims will claim the original Torah and Injil have been lost. The burden of proof is on them to provide evidence for this claim. The Qur’ān came on the scene way later than the Torah and Injil and we have manuscripts which date back to the 2nd century.
According to Deuteronomy 14:1 God calls the Israelites children of God “Ye [are] the children of the LORD your God: …” As mentioned before this doesn’t mean literal biological children of God. In the Old Testament, this is referring to the nation Israel’s relationship with God who has chosen them as a nation separate from the other surrounding nations.
Deuteronomy 32:6 Tells us that the LORD is as a Father to the children of Israel. “Do ye thus requite the LORD, O foolish people and unwise? [is] not he thy father [that] hath bought thee? …”
Here in Exodus 4:22 God says the nation of Israel is His firstborn son “… Thus saith the LORD, Israel [is] my son, [even] my firstborn:”
Jesus Christ didn’t change the Law, Isa changed the Law (made what’s haram halal)
Muslims love quoting Matthew 5:17-18 about Christ not changing the Law when they engage with Christians. But they are not aware that Isa who is supposedly Jesus did change the law according to Surah Ali ‘Imran 3:50. “to make lawful for you some of what was forbidden to you.”
This is wonderful proof showing that Isa cannot be Jesus Christ, as the two are polar opposites.
In the Bible husband cannot go back to his wife after divorce, in Islam husband can go back to his wife
In the Torah, God is against a man who has divorced his wife, and if she marries another man is not allowed to go back to her previous husband as God sees that as an abomination. In other words, is vile in the eyes of God as that woman would have had intercourse with the second man and would be considered defiled.
The Qur’ān on the other hand contradicts this as Allah is completely fine with the wife returning to her former husband. It’s clear Yahweh and Allah are not the same God as Muslims would like for us to believe.
When you compare the two texts it’s abundantly clear that Christianity and Islam do not worship the same God. Also, Jesus Christ is not Isa as they had contradictory actions, one didn’t change the Law while the other did. The only way someone would think they are the same is if they stuck their head in the sand and deliberately did not want to compare the two.
To remain ignorant is the worst thing a person can do to themself. Once you have an understanding of what the Bible and Qur’ān teach you just will not make the mistake and continue to claim they are the same.
 When we look at Yahweh, however, who is the God of the Bible, we see a different kind of deity. First of all, the name “Yahweh” comes from the time that God appeared to Moses in the burning bush. At that time God told Moses to call him “I am that I am,” or in Hebrew, “Yahweh.” It is significant that Jesus referred to himself as the “I am” in John 8:58. The Jews realized that Jesus was referring to himself as God and took up stones to stone him for what they believed was blasphemy. This link between Jesus in the New Testament and the burning bush in the Old Testament demonstrates the unity of the one God manifested to both the Jews and the Christians. This cannot be said of the Muslim God because Muslims reject the deity of Jesus and therefore reject much of what the New Testament says about Jesus. We also find that the Bible portrays Yahweh in contrast to Allah. For example, Allah is considered to be too holy to have personal relationships with man, but Yahweh is often described as a loving God interested in our personal struggles. Yahweh is also depicted as unchanging and One who assures the salvation of the faithful. Finally, because there is unity in the Trinity with the one God also being three persons, God can be described as the Father of Jesus. Dr. Daniel Janosik. Is Allah of Islam the same as Yahweh of Christianity? Retrieved from https://www.ciu.edu/allah-islam-same-yahweh-christianity
 Jesus Christ Became flesh, retaining His deity; adding humanity (John 1:14). Isa Was only flesh. Created from dust by Allah (Surah 3:59).Rob Phillips. (2007, December 20). Jesus vs. Isa (the Jesus of the Koran). OnceDelivered. https://oncedelivered.net/2007/12/20/jesus-vs-isa/