If you believe on JESUS, you believe on Him that sent him. Emmanuel is "God with us" not "Son of God with us". Only One Person in the Godhead.
Monogenes is not natural born. Only begotten is the sole, one kind, or nature. JESUS did not have a dual nature. JESUS had only one nature and that of God.
Why salvation is dependent on being established in the doctrine of Christ. The Christ is both the Anointed and the Anointing. Why the doctrine of Christ is essential for salvation.