“And as he sat upon the mount of Olives over against the temple, Peter and James and John and Andrew asked him privately,”
King James Version (KJV)
Mr 13:3 Peter and James and John and Andrew. Matthew says "the disciples came to him privately" (Mt 24:3), but does not name them. Asked him privately. "Privately" probably means apart from the multitude. The destruction of the temple had been publicly foretold (Mt 23:38 24:2).