The Lord Jesus is preaching

Was the Lord Jesus God’s Son or God Himself?

Ever since the Lord Jesus incarnated, becoming the Son of man to appear and work among mankind, we have referred to Him as Christ and have believed that He was the Son of God. However, it says in the Bible that God is the only one true God who created the heavens, the earth, and all things—it states that there is only one God. So why would people say that there is both a Son and a Father?