Acts 12:6
"And when Herod would have brought him forth, the same night Peter was sleeping between two soldiers, bound with two chains: and the keepers before the door kept the prison."
Cross References (ranked by relevance)
Then the chief captain came near, and took him, and commanded him to be bound with two chains; and demanded who he was, and what he had done.
So that we may boldly say, The Lord is my helper, and I will not fear what man shall do unto me.
The Lord give mercy unto the house of Onesiphorus; for he oft refreshed me, and was not ashamed of my chain:
For which I am an ambassador in bonds: that therein I may speak boldly, as I ought to speak.
For this cause therefore have I called for you, to see you, and to speak with you: because that for the hope of Israel I am bound with this chain.
I will both lay me down in peace, and sleep: for thou, LORD, only makest me dwell in safety.
And for fear of him the keepers did shake, and became as dead men.
And Abraham called the name of that place Jehovahjireh: as it is said to this day, In the mount of the LORD it shall be seen.
Saying, The prison truly found we shut with all safety, and the keepers standing without before the doors: but when we had opened, we found no man within.
And now, behold, I loose thee this day from the chains which were upon thine hand. If it seem good unto thee to come with me into Babylon, come; and I will look well unto thee: but if it seem ill unto thee to come with me into Babylon, forbear: behold, all the land is before thee: whither it seemeth good and convenient for thee to go, thither go.