(LG 1) The Church is the sacrament in Christ. Christ is the light of the Gentiles. (...) The light of Christ that shines on the face of the Church. (...) The Church is in Christ like a sacrament or as a sign and instrument of intimate union with God and of unity among all humankind. (...) The present conditions of the world add greater urgency to this duty of the Church, so that all people, joined more closely today by various social, technical and cultural ties, can also achieve full unity in Christ.
(LG 4) The Spirit sanctifies the Church. Having accomplished the work which the Father gave the Son on earth (cf. Jn 17:4), on the day of Pentecost, the Holy Spirit was sent to continually sanctify the Church and the believers, so that they have access through Christ to the Father in one Spirit (cf. Eph 2:18). He is the Spirit who gives life (...)
(LG 6) The Church is a farm or a field of God (cf. 1 Cor 3:9). In that field grows the ancient olive tree, whose sacred roots are the prophets and in which had taken place and will take place the reconciliation of Jews and Gentiles (cf. Rom 11.13 to 26).