Mark 13:3
And as he sat upon the mount of Olives over against the temple, Peter and James and John and Andrew asked him privately,
Cross-reference
In Mark 4:34, Jesus explains everything privately to his disciples — this verse exemplifies that pattern of private teaching.
In Mark 9:2, Jesus takes the same three (Peter, James, John) up a mountain for the Transfiguration — a pattern of private revelation to the inner circle.
In Mark 14:33, Jesus takes Peter, James, and John to Gethsemane — again private moments with the inner circle (minus Andrew).
In Mark 1:16-19, Jesus calls Peter, Andrew, James, and John — the same four disciples who later ask him privately here.
In Matthew 24:3, the disciples approach Jesus privately on the Mount of Olives to ask about the timing — the same setting and question.
Luke 21:7 records the same question from the disciples about the temple's destruction—a direct parallel account to Mark 13:3-4.
In Matthew 10:2, the twelve apostles are named, including Peter, James, John, and Andrew — confirming they are among the chosen.
In Matthew 13:10, the disciples ask Jesus privately why he speaks in parables — a similar private inquiry scene.
In Matthew 13:36, Jesus privately explains the parable of the weeds — another instance of private teaching to disciples.
In John 1:40, Andrew is introduced as Peter's brother — this identifies the disciple Andrew who asks Jesus privately here.