Yes, the verse James quoted above about the Comforter residing with us forever, it applies to the Church as a whole, not just a few individuals in audience with Jesus at the time. The Holy Spirit abides and has abided with Christ's Church forever, the Spirit of truth, which will never let the Church fall into error, no matter how much people would like to believe that He did.
You are so right. The Holy Spirit abides in every single born-again believer; which is the church. The Church is made up of every born again person. It is not a religion or an organization. The Church is not visible on earth but through individual people.
Thanks, I'm glad that you agree. The Church is not an organization. That is very Catholic teaching.
From the Catechism
I. NAMES AND IMAGES OF THE CHURCH
751 The word "Church" (Latin ecclesia, from the Greek ek-ka-lein, to "call out of") means a convocation or an assembly. It designates the assemblies of the people, usually for a religious purpose.139 Ekklesia is used frequently in the Greek Old Testament for the assembly of the Chosen People before God, above all for their assembly on Mount Sinai where Israel received the Law and was established by God as his holy people.140 By calling itself "Church," the first community of Christian believers recognized itself as heir to that assembly. In the Church, God is "calling together" his people from all the ends of the earth. The equivalent Greek term Kyriake, from which the English word Church and the German Kirche are derived, means "what belongs to the Lord."
752 In Christian usage, the word "church" designates the liturgical assembly,141 but also the local community142 or the whole universal community of believers.143 These three meanings are inseparable. "The Church" is the People that God gathers in the whole world. She exists in local communities and is made real as a liturgical, above all a Eucharistic, assembly. She draws her life from the word and the Body of Christ and so herself becomes Christ's Body.
139 Cf. Acts 19:39.
140 Cf. Ex 19.
141 Cf. 1 Cor 11:18; 14:19,28,34,35.
142 Cf. 1 Cor 1:2; 16:1.
143 Cf. 1 Cor 15:9; Gal 1:13; Phil 3:6.
However the Church indeed has
an organization and IS organized. The Church is built on the apostles and the prophets with Christ as it's cornerstone
. Ephesians 2:20. The Church, using the authority of the keys which Jesus gave to it to bind and loose (Matthew 16:18-19), established roles, including bishop and priest and deacon, to carry out many of the sacraments that Jesus Christ established and commanded. We know from Christ's commands in Matthew 18:17-18, for example, that in the kingdom there is an established authority to deal with spiritual issues.
Jesus Christ himself was the first sacrament. In his person He became an outward sign of the inward life of God when He took flesh. The Church itself is sacramental because Jesus Christ himself is a sacrament.