Need of Watchfulness

        During the French and Indian War, a period of seven years, the English and French fought against each other in North America, both of them used the Native Americans wickedly to help them fight in battle. The English army was encamped on a certain plain: it was autumn and the nights were long. The sentinels were set all around the camp, with their watchfires, as usual, to give alarm in case of any attack. One morning the sentinel at a particular post was found dead, stabbed in the back with a native's knife. Next morning the same thing happened. On the third morning also the sentinel was found dead. A young officer volunteered to take this post of danger, and in the night he saw, as he thought, one of the black hogs common in that country, rooting amongst the trees. As he watched, it drew closer and closer to him, and at last he fired at it. With a wild yell a native sprang up and fell dead on the spot. He had disguised himself in a hogskin, and so contrived to get behind the unsuspecting sentinels and stab them. 

"And what I say unto you I say unto all, Watch .  After two days was the feast of the Passover, and of the unleavened bread: and the chief priests and the scribes sought how they might take him by craft, and put him to death." Mark 13:37 and Mark 14:1