2 Corinthians 2:12

But when I came to Troas to preach the Gospel of Christ, though a door was opened unto me by the Lord,

Acts 14:27

So when they arrived they called the church together, and related what great things God had done by them, and that he had opened to the heathen the door of faith.

Acts 16:8

Whereupon passing by Mysia they went down to Troas.

Acts 20:1-6

THEN after the tumult was quieted, Paul called to him the disciples, and taking his leave, departed to go into Macedonia.

Acts 20:8

Now there were many lamps in the upper room, where they were assembled.

Romans 1:1

PAUL, a servant of Jesus Christ, a called apostle, set apart for the Gospel of God,

1 Corinthians 16:9

for there is opened to me a great door, and effectual, and there are many adversaries.

Colossians 4:3

praying also at the same time for us, that God may open to us a door for the word, that I may speak the mystery of Christ, for which I am also in chains:

Revelation 3:7-8

And to the angel of the church in Philadelphia write, These things saith the Holy One, he that is true, who hath the key of David, who openeth, and none shutteth, and shutteth, and no man openeth.

Treasury of Scripture Knowledge

Summary

Furthermore, when I came to Troas to preach Christ's gospel, and a door was opened unto me of the Lord,

Bible References

When

Acts 16:8
Whereupon passing by Mysia they went down to Troas.
Acts 20:1
THEN after the tumult was quieted, Paul called to him the disciples, and taking his leave, departed to go into Macedonia.

And a

Acts 14:27
So when they arrived they called the church together, and related what great things God had done by them, and that he had opened to the heathen the door of faith.
1 Corinthians 16:9
for there is opened to me a great door, and effectual, and there are many adversaries.
Colossians 4:3
praying also at the same time for us, that God may open to us a door for the word, that I may speak the mystery of Christ, for which I am also in chains:
Revelation 3:7
And to the angel of the church in Philadelphia write, These things saith the Holy One, he that is true, who hath the key of David, who openeth, and none shutteth, and shutteth, and no man openeth.