Did Jesus say before the cock crow or before the cock crows twice?

Did Jesus say before the cock crow or before the cock crows twice?
Before the cock crow.	Before the cock crows twice.
Matthew 26:34 Jesus said unto him, Verily I say unto thee, That this night, before the cock crow, thou shalt deny me thrice. Luke 22:34 And he said, I tell thee, Peter, the cock shall not crow this day, before that thou shalt thrice deny that thou knowest me. John 13:38 Jesus answered him, Wilt thou lay down thy life for my sake? Verily, verily, I say unto thee, The cock shall not crow, till thou hast denied me thrice.	Mark 14:30 And Jesus saith unto him, Verily I say unto thee, That this day, even in this night, before the cock crow twice, thou shalt deny me thrice.