The main textual threads running through this study are:
1 Corinthians 16:9 - “For a great and effective door has opened to me, and there are many adversaries”
2 Corinthians 2:12 - “When I came to Troas to preach Christ’s gospel, and a door was opened to me by the Lord”
Colossians 4:3 - “Pray for us, that God would open to us a door for the word, to speak the mystery of Christ”
Revelation 3:8 - “See, I have set before you an open door, and no one can shut it; for you have a little strength, have kept My word, and have not denied My name.”
(God’s faithful missionary church at the end of the age)