Matthew 24:41 YLT

³⁹  and they did not know till the flood came and took all away; so shall be also the presence of the Son of Man.

⁴⁰  Then two men shall be in the field, the one is received, and the one is left;

⁴¹  two women shall be grinding in the mill, one is received, and one is left.

⁴²  'Watch ye therefore, because ye have not known in what hour your Lord doth come;

⁴³  and this know, that if the master of the house had known in what watch the thief doth come, he had watched, and not suffered his house to be broken through;