Among Christian Groups today. Who did not pass this verse?

If I may...

Paul wrote: “To them God has chosen to make known among the Gentiles the glorious riches of this mystery, which is Christ in you, the hope of glory.”

Now "hope" is not "wish". It is not wishing for something to materialize. Hope is the expectation that what is promised will appear. Hope is based in truth that is established in Christ. The "name it and claim it" doctrine is based on wish. "Christ in us" is based on hope and is secured by the promises of God.

"By this you know the Spirit of God: Every spirit that confesses that Jesus Christ has come in the flesh is of God,

This is not about Jesus Christ appearing as a man. This is about Him indwelling the believer. "Christ in us" is central to the saint's life: "Christ in us" gives meaning and purpose to everything we do. By His Spirit in us, the Holy Spirit, we are led moment by moment in the commands of God. We may know what He is doing and have the power to follow His direction.

However,

"..and every spirit that does not confess that Jesus Christ has come in the flesh is not of God. And this is the spirit of the Antichrist, which you have heard was coming, and is now already in the world."

Any doctrine that supplants the indwelling of Christ as our guidance for life in the Spirit is Anti-Christ. The Father has entrusted all He has to the Son. It is only by the Son that we have life in Him. Lastly, scriptures must be understood spiritually for the words to bring life to the reader. If they are understood as a rule book or as wise teachings that is Anti-Christ.

Just to bring this closer to home. Denying the Jesus Christ indwells believers might sound like:
"The 10 Commandments are our guide for life."
or even
"Following the scriptures is what makes us holy."
or even
"If we don't get baptized into water the Lord is not in us."

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Saul of Tarsus who studied in a bible school to Gamaliel and became a religious leader.
Saul became well known as a Pharisee. Despite of the knowledge from The Words of God Taught him by Gamaliel he thrown them all and he humble himself and he admitted that he don't know The One True God.
ACTS 9:3-5
3 And as he journeyed, he came near Damascus: and suddenly there shined round about him a light from heaven:
4 And he fell to the earth, and heard a voice saying unto him, Saul, Saul, why persecutest thou me?
5 And he said, Who art thou, Lord? And the Lord said, I am Jesus whom thou persecutest: it is hard for thee to kick against the pricks.

1 JOHN 4:2-3

2 Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:

3 And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.

1 JOHN 4:2-3

2 Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:

3 And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.

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When I try to listen with the different groups in Christianity, they only have one statement on Who is Jesus Christ Who Come in The Flesh..
Jesus Christ, the Son of God who came in the flesh.
With that believe they are expressing they are not the Anti Christ.

How about, let God explains to us by means of his words on who is really Jesus Christ who came in The Flesh.

God The Father who sent the Angel to the Jews to announce the good news about Jesus Christ.
According to God The Father, Jesus is The Christ or Savior.
LUKE 2:10-11
10 And the angel said unto them, Fear not: for, behold, I bring you good tidings of great joy, which shall be to all people.
11 For unto you is born this day in the city of David a Saviour, which is Christ the Lord.

This is why it is very clear to all believers and readers of the Holy Bible, that Jesus Christ is The Savior.

Let us listen to God The Father who is speaking in the Old Testament.
According to God The Father there is no other savior but God The Father alone.
ISAIAH 43:10-11
10 Ye are my witnesses, saith the Lord, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me.
11 I, even I, am the Lord; and beside me there is no saviour.

Who can reconcile this but God The Father alone.

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In Isaiah 43:10-11 God The Father claimed that God The Father is The Only Savior.

But in these verses. Our Lord Jesus claimed that Our Lord Jesus is The Christ or The Savior. And according to Our Lord, it came from God The Father.
MATTHEW 16:13-16
13 When Jesus came into the coasts of Caesarea Philippi, he asked his disciples, saying, Whom do men say that I the Son of man am?
14 And they said, Some say that thou art John the Baptist: some, Elias; and others, Jeremias, or one of the prophets.
15 He saith unto them, But whom say ye that I am?
16 And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
17 And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.

The question remains.
WHO IS JESUS CHRIST WHO CAME IN THE FLESH?

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Question: How do we recognize Jesus who came in the Flesh?
Our Lord Jesus Christ revealed on how we recognize him.
MATTHEW 16:15-17
15 He saith unto them, But whom say ye that I am?
16 And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
17 And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.

According to Our Lord Jesus, when Simon Peter recognize him, it come from God The Father.
Since anything from God is considered as Miracle.
Therefore: It requires a Miracle before we can recognize Jesus who Come in The Flesh.

Now it is getting difficult to answer, Who is Jesus Christ Who Come in The Flesh.

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Question: How do we recognize Jesus who came in the Flesh?
Our Lord Jesus Christ revealed on how we recognize him.
MATTHEW 16:15-17
15 He saith unto them, But whom say ye that I am?
16 And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
17 And Jesus answered and said unto him, Blessed art thou, Simon Barjona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.

According to Our Lord Jesus, when Simon Peter recognize him, it come from God The Father.
Since anything from God is considered as Miracle.
Therefore: It requires a Miracle before we can recognize Jesus who Come in The Flesh.

Now it is getting difficult to answer, Who is Jesus Christ Who Come in The Flesh.

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Let us let God The Father reveal to us Who is The Jesus Christ Who Came in The Flesh.

God The Father made a Covenant or a Testament.
Whoever benefited in The Covenant will become Son of God (Chosen)
Therefore those who are not covered in this Testament are not considered Chosen.
GENESIS 17:7
7 And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee.

But according to Apostle Paul, the one who made the Testament must die otherwise the Testament is Nothing.
HEBREWS 9:16-17
16 For where a testament is, there must also of necessity be the death of the testator.
17 For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth.

Let us not forget. The One who made the Testament in Genesis 17:7 is the God of Abraham, Isaac & Jacob whom they call him Father.

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Let us let God The Father reveal to us Who is The Jesus Christ Who Came in The Flesh.

God The Father made a Covenant or a Testament.
Whoever benefited in The Covenant will become Son of God (Chosen)
Therefore those who are not covered in this Testament are not considered Chosen.
GENESIS 17:7
7 And I will establish my covenant between me and thee and thy seed after thee in their generations for an everlasting covenant, to be a God unto thee, and to thy seed after thee.

But according to Apostle Paul, the one who made the Testament must die otherwise the Testament is Nothing.
HEBREWS 9:16-17
16 For where a testament is, there must also of necessity be the death of the testator.
17 For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth.

Let us not forget. The One who made the Testament in Genesis 17:7 is the God of Abraham, Isaac & Jacob whom they call him Father.

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Let us not forget:
When Simon Peter said to Jesus, You are The Christ and The Son of The Living God (Matthew 16:16) Jesus accept what Simon said that Jesus himself is The Savior.

The God of Abraham, Isaac and Jacob who made the Testament is a Spirit God.
Being a Spirit God, There is No Way to Fulfill His Testament because The Spirit Can't Die.

This is God of Abraham, Isaac & Jacob whom called God The Father did.
According to Paul, what God The Father did is no issue at all period.
Yes, God the Father was seen in The Flesh. He became a Man.
1 TIMOTHY 3:16
16 And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.

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Let us not forget:
When Simon Peter said to Jesus, You are The Christ and The Son of The Living God (Matthew 16:16) Jesus accept what Simon said that Jesus himself is The Savior.

The God of Abraham, Isaac and Jacob who made the Testament is a Spirit God.
Being a Spirit God, There is No Way to Fulfill His Testament because The Spirit Can't Die.

This is God of Abraham, Isaac & Jacob whom called God The Father did.
According to Paul, what God The Father did is no issue at all period.
Yes, God the Father was seen in The Flesh. He became a Man.
1 TIMOTHY 3:16
16 And without controversy great is the mystery of godliness: God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.