Jesus and the Holy Spirit are not co-equal with the Father. They are subordinate to the Father because they are manifestations of Him. It is unfortunate that there is a propensity amongst men to mistake form for substance.
Jesus couldn't make it plainer concerning himself:
Verily, verily, I say unto you, The Son can do nothing of himself, but what he seeth the Father do: for what things soever he doeth, these also doeth the Son likewise.
-- John 5:19 (KJV)
I can of mine own self do nothing: as I hear, I judge: and my judgment is just; because I seek not mine own will, but the will of the Father which hath sent me.
-- John 5:30 (KJV)
When ye have lifted up the Son of man, then shall ye know that I am he, and that I do nothing of myself; but as my Father hath taught me, I speak these things.
-- John 8:28 (KJV)
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.
-- John 14:10 (KJV)
Ye have heard how I said unto you, I go away, and come again unto you. If ye loved me, ye would rejoice, because I said, I go unto the Father: for my Father is greater than I.
-- John 14:28 (KJV)
Jesus speaking of the Holy Spirit, says:
If ye love me, keep my commandments. And I will pray the Father, and he shall give you another Comforter, that he may abide with you for ever; Even the Spirit of truth; whom the world cannot receive, because it seeth him not, neither knoweth him: but ye know him; for he dwelleth with you, and shall be in you. I will not leave you comfortless: I will come to you. ...
He that hath my commandments, and keepeth them, he it is that loveth me: and he that loveth me shall be loved of my Father, and I will love him, and will manifest myself to him.
-- John 14:15-18, 21 (KJV)
When Jesus says of the Comforter, "for he dwelleth with you", he was referring to the Father, since it was the Father in the form of the Son who resided with them for the term of his earthly ministry, and it was the Father in the form of the Son who was comforting them when he said, "Let not your heart be troubled" (John 14:1, John 14:27) and "be of good cheer" (John 16:33). It was the Father in the form of the Son who was flayed and pieced and mocked and nailed to a cross.
When Jesus says of the comforter, "he shall be in you", and "I will not leave you comfortless: I will come to you", and again, "I will love him, and will manifest myself to him", it can only be the Father taking on a new form as the Holy Spirit, in order to facilitate a perpetual habitation amongst them -- and all from thence who would choose to follow his commandments.
If one were to worship the Son as if he is a different "person" to the Father, then he/she would be an idolater. If one were to worship the Spirit as if he is a different "person" to the Father, then he/she would also be an idolater. If people say anything about the Son or the Spirit beyond what Jesus says himself, then they are perpetuating false doctrine.