Watch ye therefore: for ye know not when the master of the house cometh, at even, or at midnight, or at the cockcrowing, or in the morning:
Mark 13:33
Take heed, watch and pray, for ye have not known when the time is;
Matthew 24:42
'Watch ye therefore, because ye have not known in what hour your Lord doth come;
Matthew 24:44
because of this also ye, become ye ready, because in what hour ye do not think, the Son of Man doth come.