'Chains' in the Bible

I, Paul, write this greeting by my own hand. Remember my chains. Grace be with you.

May the Lord grant mercy to the household of Onesiphorus, because he often refreshed me and was not ashamed of my chains.

for that [gospel] I am suffering even to [the point of] wearing chains like a criminal; but the word of God is not chained or imprisoned!

appeal to you for my son, Onesimus. I fathered him while I was in chains.

whom I desired to keep with me, that on your behalf he might serve me in my chains for the Good News.

And let those who all their lives were in chains because of their fear of death, go free.

For you both had compassion on me in my chains, and joyfully accepted the plundering of your possessions, knowing that you have for yourselves a better possession and an enduring one in the heavens.

Still others endured taunts and floggings, and even chains and imprisonment.

Keep in mind those who are in chains, as if you were chained with them, and those who are in trouble, as being yourselves in the body.

For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;

And the angels which kept not their first estate, but left their own habitation, he hath reserved in everlasting chains under darkness unto the judgment of the great day.

And he took the dragon, the old snake, which is the Evil One and Satan, and put chains on him for a thousand years,