In the 24th of Matthew and the 44th verse our Lord tells His disciples about His promise to come back again, and He earnestly begged them to be watchful, reminding them that His coming would be very sudden.
He described how two would be in a field, and how one should be taken and the other left behind: and that two should be grinding flour with the mill-stones, and how one would be taken and the other would be left behind.
And then our Lord added this warning, "Watch therefore: for ye know not what hour your Lord doth come."
He wants all who love Him to be quite ready for Him.
Now you know just what it means to be ready?
A father is perhaps going to take his children for a holiday in the country, and he says to them, "Be quite ready, children. I am going out to get a cab, and we must start the moment it comes, or we shall lose the train. Keep looking out for me, and be quite ready waiting. I do not want one of you to be left behind!"
"LORD, LORD OPEN TO US!"
Well, some of the children are very obedient, and they do exactly as they are told.
But one child thinks to herself, "There is plenty of time—Father has hardly got to the end of the road yet, and I do just want to finish this page of my book! Then I will dress in a hurry!"