2 Corinthians 2:12

When I was come to Troas for Christ's gospel's sake - and a great door was opened unto me of the Lord -

Acts 14:27

When they were come and had gathered the congregation together, they rehearsed all that God had done by them, and how he had opened the door of faith unto the Gentiles.

Acts 16:8

Then they went over Mysia, and came down to Troas,

Acts 20:1-6

After the rage was ceased, Paul called the disciples unto him, and took his leave of them, and departed for to go into Macedonia.

Acts 20:8

And there were many lights in the chamber where they were gathered together,

Romans 1:1

Paul, the servant of Jesus Christ, called unto the office to be an apostle, put apart to preach the Gospel of God,

1 Corinthians 16:9

For a great door and a fruitful is opened unto me: and there are many adversaries.

Colossians 4:3

praying also for us, that God open unto us the door of utterance, that we may speak the mystery of Christ - wherefore I am in bonds -

Revelation 3:7-8

"And write unto the tidings-bringer of the congregation of Philadelphia, 'This saith he that is holy and true, which hath the key of David; which openeth and no man 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
Then they went over Mysia, and came down to Troas,
Acts 20:1
After the rage was ceased, Paul called the disciples unto him, and took his leave of them, and departed for to go into Macedonia.

And a

Acts 14:27
When they were come and had gathered the congregation together, they rehearsed all that God had done by them, and how he had opened the door of faith unto the Gentiles.
1 Corinthians 16:9
For a great door and a fruitful is opened unto me: and there are many adversaries.
Colossians 4:3
praying also for us, that God open unto us the door of utterance, that we may speak the mystery of Christ - wherefore I am in bonds -
Revelation 3:7
"And write unto the tidings-bringer of the congregation of Philadelphia, 'This saith he that is holy and true, which hath the key of David; which openeth and no man shutteth, and shutteth and no man openeth.