Colossians 4:3

at the same time praying for us also, that God may open to us a door for the word, to speak the mystery of Christ (because of which I have also become bound),

Ephesians 6:19-20

and on my behalf that utterance may be given to me, in opening my mouth to make known with boldness the mystery of the Gospel,

Acts 14:27

And, having arrived, and having gathered together the assembly, they were rehearsing as many things as God did with them, and that He opened to the gentiles a door of faith.

Philippians 1:7

even as it is right for me to think this in behalf of you all; because ye have me in your heart, both in my bonds and in the defense and confirmation of the Gospel, all of you being partakers with me of the grace.

Matthew 13:11

And He, answering, said to them, "Because to you it has been given to know the mysteries of the Kingdom of Heaven, but to them it has not been given.

Romans 15:30-32

And I beseech you, brethren, by our Lord Jesus Christ, and by the love of the Spirit, to strive together with me in your prayers to God for me;

1 Corinthians 4:1

Let a man so consider us, as servants of Christ, and stewards of the mysteries of God.

1 Corinthians 16:9

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

2 Corinthians 2:12

Now, having come to Troas for the Gospel of Christ, and a door having been opened to me in the Lord,

Ephesians 3:1

For this cause I, Paul, the prisoner of Christ Jesus in behalf of you gentiles,

Ephesians 4:1

I, therefore, the prisoner in the Lord exhort you to walk worthily of the calling with which ye were called,

Philippians 1:13-14

that my bonds became manifest in Christ in the whole praetorium, and to all the rest;

Philippians 1:19

For I know that this will turn out for my salvation, through your supplication and a supply of the Spirit of Jesus Christ;

Colossians 1:26

the mystery which has been hidden from the ages and from the generations, but was now made manifest to His saints;

Colossians 2:2-3

that their hearts may he comforted, they being knit together in love, and unto all riches of the full assurance of the understanding, unto the full knowledge of the mystery of God, even Christ,

1 Thessalonians 5:25

Brethren, pray for us.

2 Thessalonians 3:1-2

Finally, brethren, pray for us, that the word of the Lord may run and be glorified, as also it is with you:

2 Timothy 1:16

The Lord give mercy to the house of Onesiphorus; because he ofttimes refreshed me, and was not ashamed of my chain;

2 Timothy 2:9

wherein I am suffering hardship, even to bonds, as a malefactor; but the Word of God has not become bound.

Hebrews 13:18-19

Pray for us; for we are persuaded that we have a good conscience, desiring to deport ourselves honestly in all things.

Revelation 3:7-8

"And to the angel of the assembly in Philadelphia write these things," saith He Who is holy, He Who is true, He Who hath the key of David, He Who openeth, and no one shall shut; and shutteth, and no one opens:

Treasury of Scripture Knowledge

Summary

Withal praying also for us, that God would open unto us a door of utterance, to speak the mystery of Christ, for which I am also in bonds:

General references

Bible References

Praying

Romans 15:30
And I beseech you, brethren, by our Lord Jesus Christ, and by the love of the Spirit, to strive together with me in your prayers to God for me;
Ephesians 6:19
and on my behalf that utterance may be given to me, in opening my mouth to make known with boldness the mystery of the Gospel,
Philippians 1:19
For I know that this will turn out for my salvation, through your supplication and a supply of the Spirit of Jesus Christ;
1 Thessalonians 5:25
Brethren, pray for us.
Philemon 1:22
But, at the same time, prepare also a lodging for me; for I hope that, through your prayers, I shall be given to you.
Hebrews 13:18
Pray for us; for we are persuaded that we have a good conscience, desiring to deport ourselves honestly in all things.

That

1 Corinthians 16:9
for a door, great and effectual, has opened to me, and there are many adversaries.
2 Corinthians 2:12
Now, having come to Troas for the Gospel of Christ, and a door having been opened to me in the Lord,
2 Thessalonians 3:1
Finally, brethren, pray for us, that the word of the Lord may run and be glorified, as also it is with you:
Revelation 3:7
"And to the angel of the assembly in Philadelphia write these things," saith He Who is holy, He Who is true, He Who hath the key of David, He Who openeth, and no one shall shut; and shutteth, and no one opens:

General references

1 Thessalonians 5:25
Brethren, pray for us.