I am Evangelical Presbyterian and they are definitely reformed.
We split from Presbyterian USA about 15 or so years ago due to certain situations starting with gays in the pulpit...
The Five solas of the Reformation, which distinguished the Reformers from the teachings of Rome, include sola scriptura (Scripture alone), solus Christus (Christ alone), sola fide (faith alone), sola gratia (grace alone), and soli Deo gloria (glory to God alone). Summary
This Biblical Presbytery my former church has joined unto, are not discerning what place the Holy Spirit has in worship since the Holy Spirit is sent to dwell in us to testify of the Son thru us ( John 15:26-27 ) to glorify the Son ( John 16:14 ) and thus not Himself for that would be giving himself glory and thereby a false witness which the Holy Spirit cannot and therefore would not do as man are not to do that either per John 5:31 & John 7:18. it takes two witnesses to make a witness true per John 8:17. That is why the Holy Spirit is not mentioned to be honored as if He is another way to honor the Father by in John 5:22-23. The father is honored & glorified by only honoring & glorifying the Son as John 13:31-32 & Philippians 2:5-11 testifies to that mind of Christ we are to have in worship in that obedience.
Although scripture testifies to the Holy Spirit being God and of the Three Witnesses within that One God, all invitations to come to the Father is by the only way of the Son as specified.
John 14:6
Jesus saith unto him, I am the way, the truth, and the life:
no man cometh unto the Father, but by me.
The modified Nicene creed of 381 A.D. introduce the "broadening of the way" in the worship place in coming to God, by including the worship of the Holy Spirit with the Father & the Son.
John 10:1Verily, verily, I say unto you, He that entereth not by the door into the sheepfold, but climbeth up some other way, the same is a thief and a robber.... 7 Then said Jesus unto them again, Verily, verily, I say unto you, I am the door of the sheep. 8 All that ever came before me are thieves and robbers: but the sheep did not hear them. 9 I am the door: by me if any man enter in, he shall be saved, and shall go in and out, and find pasture. 10 The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly.
Now they have successfully conquered the laity when scripture does not teach nor support that kind of worship.
With the focus on the Holy Spirit in worship, they suffer a thief to break through for why God permit those strong delusion to occur in the holy laughter movement, being drunk in the "spirit", Pensacola outpouring, Toronto's Blessings, the former Ernest Angeley's Healing Crusade. These phenomenon all started in the Welsh Street Revival in 1904-05 & culminated in with all of those phenomenon reported in the Azusa Street Revival in 1906-09 where the focus was on receiving the Holy Spirit with evidence of tongues. This is why that kind of tongue is not coming with interpretation because that gibberish nonsense is not of Him at all but a pagan supernatural tongues as found in the occult per Isaiah 8:19 and in Roman idolatry
The History of Tongues: Pagan Practices
None of the gifts of the spirit are for private use; but to profit the assembly;
1 Corinthians 12:4 Now there are diversities of gifts, but the same Spirit. 5 And there are differences of administrations, but the same Lord. 6 And there are diversities of operations, but it is the same God which worketh all in all. 7 But the manifestation of the Spirit is given to every man
to profit withal.
8 For to one is given by the Spirit the word of wisdom; to another the word of knowledge by the same Spirit; 9 To another faith by the same Spirit; to another the gifts of healing by the same Spirit; 10 To another the working of miracles; to another prophecy; to another discerning of spirits; to another divers kinds of tongues; to another the interpretation of tongues: 11 But all these worketh that one and the selfsame Spirit, dividing to every man severally as he will.
12 For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ.
13 For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit.
14 For the body is not one member, but many.....
.....18 But now hath God set the members every one of them in the body, as it hath pleased him. 19 And if they were all one member, where were the body? 20 But now are they many members, yet but one body.
21 And the eye cannot say unto the hand, I have no need of thee: nor again the head to the feet, I have no need of you.
That is what tongue speakers that use tongues for private use are actually saying to the body of Christ as if tongues is an exception to all other gifts of the Spirit when in actuality, that tongue gained by seeking to receive the Holy spirit and thus Jesus by a sign so they can believe, are committing spiritual adultery.
Matthew 12:38 Then certain of the scribes and of the Pharisees answered, saying, Master, we would see a sign from thee. 39 But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas: 40 For as Jonas was three days and three nights in the whale's belly; so shall the Son of man be three days and three nights in the heart of the earth.
They actually believe the Holy Spirit makes intercessions for them by that tongue out loud and yet all Bible versions testify how the Holy Spirit will not speak from Himself but how He will speak only what He hears in John 16:13 whereas the KJV and a few modern bibles kept the truth in His words in Romans 8:26-27 that He cannot even utter His groanings out loud. But alas, most modern bibles seem to testify that the Holy Spirit utter some sounds when making His intercessions and even commit a grammatical error by switching out the "he" in the latter part of verse 27 with "the Spirit" when this he is separate from us in searching our hearts and separate from the Spirit in knowing the mind of that this "he" is Jesus Christ, because He is the only Mediator between God and men to give the Spirit's unbuttered intercessions, our intercessions, and His own intercessions to the Father so that when the Father says "yes..." to any of them, the Son answers the prayers so that the Father may be glorified in the Son for answers to prayers. John 14:13-14
So when anyone prays to the Holy Spirit and tongues without interpretation or chaos comes, that is why as God is not the author of confusion and they were offending God the father by climbing up another way to Him other than by the only way of the Son.
With all those spirits in the world and the spirits that are behind the idols, is why all invitations to come to the Father is by the only way of the Son. If a saved believer does not wish to suffer a thief to break through, they will be watching leaning on the Lord to keep their eyes on the Son in coming to God the Father for anything, but not for any more filling of the Spirit when they are complete in Christ ( Colossians 2:5-10 ) and therefore their focus is always on the Son, the Bridegroom for why they will not be seeking another drink of the One Spirit, and thus avoiding suffering a thief to break through, hence the spirits of the antichrist.
1 Corinthians 12:13;Matthew 9:17;2 Corinthians 11:1-4;1 John 4:1-6
Matthew 7:13 Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat: 14 Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.
Luke 13:24 Strive to enter in at the strait gate: for many, I say unto you, will seek to enter in, and shall not be able.
That is a warning from Jesus for how bad it is in the churches today and why only a few heed His words to not suffer their house to fall in these movements of the spirit which many disguised it as a revival in these latter days but in reality, it is a falling away from the faith.
So trust Jesus Christ as your personal Good Shepherd to take heed to His words in discerning whether or not the Presbytery you are in is actually Biblical.