Colossians 4:3

And when they had arrived and gathered the church together, they began to report all things that God had done with them and how He had opened a door of faith to the Gentiles.

Now to Him who is able to strengthen you according to my gospel and the preaching of Jesus Christ, according to the revelation of the mystery which has been kept secret for long ages past,

that by revelation there was made known to me the mystery, as I wrote before in brief.

About which, when you read you can understand my insight into the mystery of Christ,

and to bring to light for all what is the administration of the mystery which for ages has been hidden in God who created all things;

as well as on my behalf, that words may be given to me in the opening of my mouth, to make known with boldness the mystery of the gospel—

for which I am an ambassador in chains—so that in proclaiming it I may speak boldly, as I ought to speak.

that is, the mystery which has been hidden from the past ages and generations, but has now been manifested to His saints,

so that their hearts may be encouraged, having been held together in love, even unto all the wealth of the full assurance of understanding, unto the full knowledge of God’s mystery, that is, Christ Himself,

The greeting is in my own hand—Paul. Remember my chains. Grace be with you.

preach the word; be ready in season and out of season; reprove, rebuke, exhort, with great patience and teaching.