12:5Peter therefore was kept in prison: but prayer was made without ceasing of the church unto God for him.
12:6And 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.
12:7And, behold, the angel of the Lord came upon him, and a light shined in the prison: and he smote Peter on the side, and raised him up, saying, Arise up quickly. And his chains fell off from his hands.
12:8And the angel said unto him, Gird thyself, and bind on thy sandals. And so he did. And he saith unto him, Cast thy garment about thee, and follow me.
12:9And he went out, and followed him; and wist not that it was true which was done by the angel; but thought he saw a vision.
12:10When they were past the first and the second ward, they came unto the iron gate that leadeth unto the city; which opened to them of his own accord: and they went out, and passed on through one street; and forthwith the angel departed from him.
12:11And when Peter was come to himself, he said, Now I know of a surety, that the Lord hath sent his angel, and hath delivered me out of the hand of Herod, and from all the expectation of the people of the Jews.
James's death occupies one sentence. Peter's imprisonment and release receive chains, doors, sandals, dialogue, and a street. The difference in space is not a difference in the worth of the two men. It is one of the chapter's hardest features: the same community loses one apostle and receives another back, and the Book of Acts does not explain why their outcomes differ.
Vex sounds almost mild now. Verse 2 removes any possibility that it means mere irritation. The king's action reaches a named man and ends in execution. James is identified through his brother John, so the loss is both apostolic and familial. No last speech is supplied. No account of his feelings is supplied. The sentence is allowed to remain as stark as the act it records.
That restraint matters when the passage is read beside Peter's deliverance. James is not described as less faithful, insufficiently prayed for, or somehow less needed. None of those explanations appears. The chapter records an actual death before it records an actual rescue. The rescue does not undo the death.