77. Is not the Son of God separate from God the Father?

No. The term “Son” speaks of the image (i.e. the physical expression) of the invisible God. It was necessary for God to reveal/show Himself in the flesh; in the person of Jesus Christ for the salvation of mankind. This fleshly expression provided the tabernacle within which the eternal Father resided while reconciling the world unto Himself through Christ.

John 14:6
6 Jesus saith unto him, I am the way , the truth, and the life: no man cometh unto the Father, but by Me.
7 If ye had known Me, ye should have known My Father also: and from henceforth ye know Him, and have seen Him.
8 Phillip saith unto Him, Lord, shew us the Father, and it sufficeth us.
9 Jesus saith unto him, Have I been so long time with you, and yet hast thou not known Me, Philip? He that hath seen Me hath seen the Father; and how sayest thou then, Shew us the Father?
10 Believest thou not that I am in the Father , and the Father in Me? The words that I speak unto you I speak not of Myself: but the Father that dwelleth in Me, He doeth the works.
11 Believe me that I am in the Father, and the Father in Me: or else believe Me for the very works’ sake.

2 Corinthians 5:17
17 Therefore if any man be in Christ, he is a new creature: old things are passed away; behold all things are become new.
18 And all things are of God, who hath reconciled us to Himself by Jesus Christ, and hath given to us the ministry of reconciliation;
19 To wit, that God was in Christ, reconciling the world unto Himself, not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.