And it came to pass in those days, that he went out into a mountain to pray, and continued all night in prayer to God. -- Luke 6:12 (KJV)
Luke gives the praying more room than the choosing. A full verse walks Jesus up the mountain and keeps Him there — continued all night in prayer to God — and then the decision itself goes by in half a sentence: when it was day, of them he chose twelve.
On paper the decision looks small. There was already a wider circle of disciples; out of it, twelve are called up and given a name, apostles. Yet before doing it, the Son of God stayed up the entire night praying. Luke shows Jesus at prayer more often than any other Gospel does, at every hinge of the story, and this is the longest stretch he ever reports: dark to daylight, alone, over what amounts to a list of names.
Then comes the list, and it is stubbornly ordinary. Fishermen. Two sets of brothers. Simon called Zelotes, from the party that wanted Rome thrown out by force. Nobody with a title, nobody you would have picked off a page. And the final name carries the only editorial note in the roster: and Judas Iscariot, which also was the traitor.
The Last Name on the List
Luke wrote that line knowing the whole story, and he did not trim the list to spare it. The night of prayer and the name of the traitor stand a few words apart. Scripture does not open Judas's heart to us on that morning, and it does not make God the hand behind what Judas would one day choose to do — the treachery belongs to the man Luke names. What the text holds out is narrower and harder: the twelve came out of a whole night with the Father, and the twelve included him.
So the night was not a safety mechanism. It did not exist to guarantee that every name would hold, and it is not a decision-making method to copy on the eve of anything large. It was the Son doing nothing — not even this — apart from His Father. We tend to pray over choices to get them right, meaning protected from ending badly. Jesus prayed until morning and still named all twelve.
There is probably a person you have stopped carrying into prayer because you have privately settled how their story ends. Luke's order is the other way: the night first, then the names — every one of them.