Why was Jesus born of a virgin mother

Muslims often doubt on the authenticity of Jesus Christ, His status as son of God and His sacrifice for humanity. One of those hot topics is Jesus´ birth of a virgin mother. People make fun of this fact by saying that how God can have sexual relationship with a human and a child´s birth takes place who was later called the son of God? For some its a fantasy and some consider it a lie but no one can challenge the Will and Word of God. Everything that He does holds a purpose behind. Today Pastor David Michael Santiago, the guest preacher for “Jesus Christ for Muslims” explains us “why was Jesus born of a virgin mother?”