Matthew 24:42-43; Matthew 25:13; Matthew 26:38; Matthew 26:40-41 (King James Version)

42 Watch therefore: for ye know not what hour your Lord doth come . 43 But know this, that if the goodman of the house had known in what watch the thief would come , he would have watched , and would not have suffered his house to be broken up . 13 Watch therefore, for ye know neither the day nor the hour wherein the Son of man cometh . 38 Then saith he unto them, My soul is exceeding sorrowful, even unto death: tarry ye here, and watch with me. 40 And he cometh unto the disciples, and findeth them asleep , and saith unto Peter, What, could ye not watch with me one hour? 41 Watch and pray , that ye enter not into temptation: the spirit indeed is willing, but the flesh is weak.