Religion is about what you do. Your good works, law keeping, how much you give, your church attendance, prayer etc.
The Gospel is about what Christ did. His Death, Burial, Resurrection. And when we trust Him, what He can do thru/with/in us.
The prepositional phrase's: "In Christ" "In Him" "In Whom".
Are positional statements used over 100 times by Paul
Rom 8:1 There is now no condemnation for those who are "in Christ" Jesus
1 Cor 1:30 Because of him that you are "in Christ", who has become for us wisdom from God that is, our righteousness, holiness & redemption
2 Cor 5:17 If anyone is "in Christ", he is a new creation; the old has gone, the new has come
Gal 3:26 You are all sons of God thru faith "in Christ"
Eph 2:6 God raised us up with Christ & seated us with him in the heavenly realms "in Christ"
7 In order that in the coming ages he might show the incomparable riches of his grace, expressed in his kindness to us "in Christ"
Eph 2:10 We are God's workmanship, created "in Christ"
Eph 2:13 Now "in Christ" you who once were far away have been brought near thru his blood
Eph 3:6 This mystery is that thru the gospel the Gentiles are heirs together with Israel, members together of 1 body, & sharers together in the promise "in Christ"
Col 1:27 To whom God would make known what is the riches of the glory of this mystery among the Gentiles; which is "Christ in you", the hope of glory:
28 We proclaim him, teaching everyone with all wisdom, so that we may present everyone perfect "in Christ"
1 Tim 1:14 The grace of our Lord was poured out on me abundantly, along with the faith & love that "in Christ"
1 Tim 1:9 God saved us, & called us with an holy calling, not according to our works, according to his own purpose & grace, which was given us "in Christ" before the world began
2 Tim 2:1 My son, be strong in the grace that is "in Christ"
2 Tim 2:10 I endure everything for the sake of the elect, that they too may obtain the salvation that is "in Christ" Jesus, with eternal glory
1 Thess 4:16 For the Lord himself will come down from heaven, with a loud command, with the voice of the archangel and with the trumpet call of God, and the dead "in Christ" will rise first
Eph 1:13 "In whom" ye also trusted (CHRIST), after that ye heard the word of truth (HIS SIN ATONING SACRIFICE), the gospel of your salvation (1 Cor 15:1-4 & Rom 10:8-13) "in whom" also after that ye believed (WHEN U ACCEPTED GODS GRACE & PLACED UR FAITH IN CHRIST), ye were sealed with that holy Spirit of promise (UR SALVATION WAS SEALED BY THE HOLY SPIRIT)
Eph 1:14 Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory.
(Earnest means deposit: When we trusted Christ, God placed His Holy Spirit in us)
2 Cor 1:22 Who hath also sealed us, and given the earnest of the Spirit in our hearts.
(The gives/places His Holy Spirit in us as a down payment)
Romans 8:11 But if the Spirit of him that raised up Jesus from the dead dwell in you, he that raised up Christ from the dead shall also quicken your mortal bodies by his Spirit that dwelleth in you.
(The Holy Spirit we see in Eph 1:13 sealed us. And now & forever dwells "IN" us)
1 Corinthians 3:16 Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?
(The Spirit of God dwells "INSIDE" us)
2 Timothy 1:14 14 That good thing which was committed unto thee keep by the Holy Ghost which dwelleth in us.
(The Holy Spirit "SEAL" that was committed to keep & protect us. Lives "INSIDE" us)
Believers IN CHRIST we are SEALED Forgiven, Reconciled, Justified & Have Eternal Life.
Colossians 2:10 And ye are complete "in him" which is the head of all principality and power. Maranatha