A Muslim may ask:
How can Christians call Jesus the “Son of God”? This is blasphemy. God has no sons!
Jesus is referred to in the Bible as “The Word” of God (John 1:1). Jesus has that same title in Islam (Quran 4:171).
God’s word is His divine ideas given to us in a human understandable form of communication, via scripture or inspiration.
Now, think of ideas in terms of birth from the mind, “the idea is the child of the mind.” Is there anything wrong in saying: “my ideas are the child of my mind?” Did you say anything irrational here?
It is unfortunate, that some people think when Jesus is referred to as the “Son of God” that He was born from God in a physical or sexual manner.
Jesus is not a physical son of God, as you are not a physical child of your country, still you could say: “I am the son/daughter/child of my country” Nobody will think your country went into labor and gave physical birth to you.
Similarly, the idea which is born from the mind, is the child of the mind, remains in the mind, does not leave the mind, and a mind without ideas or knowledge is an absent mind.
We believe that Jesus is God’s Word, His idea which was given to us as a divine communication between God and man.