Matthew Poole and continuators on John 10:7

7 Then said Jesus unto them again, Verily verily I say unto you, I am the door of the Sheep .

Our Saviour had before been speaking of the Door in another Notion; there he spake of the door of the Shepherd, here of the door of the Sheep; there of the Door (that is) the true and regular way of Entrance into the Care, Conduct, and Government of the Church: here, of the true way of Entrance, not into the Church Militant onely, but into the Church Triumphant. It may be also understood of the Door, or way of Entrance and admission into the Church Visible here upon the Earth. Circumcision, Baptism, External Profession, are the Doors into the Visible Church; but none unless by Christ, that is, by a true and lively Faith wrought by the Spirit of Christ in the Soul, can be a true Member of Christs Invisible Church here upon the Earth, much less a Member of his Glorious Church in Heaven.