From; Ellen G. White
The Lord is coming. “Let us not sleep, as do others; but let us watch and be sober.” “Ye are all the children of light, and the children of the day.” “Yourselves know perfectly [should you arouse from your spiritual stupor] that the day of the Lord so cometh as a thief in the night.” (1 Thessalonians 5:6, 5, 2.) Oh, that the church in Battle Creek would know that the day of the Lord is right upon them! He will come in the clouds of heaven with power and great glory. Will any of us wish to be sleeping when the Lord comes? MR.387.1

“While the bridegroom tarried, they all slumbered and slept” (Matthew 25:5). Who have oil in their vessels with their lamps? Should the Saviour come at this time, would not many of us be afraid to meet Him? Could we hail Him with joy, saying, “Lo, this is our God; we have waited for Him, and He will save us” (Isaiah 25:9)? Are we ready for His appearing? Is the soul temple cleansed of its defilement? Would we want Christ to come and find us in disunion, in strife with one another? Would we want Christ to come and find us in frivolous amusements, in concerts which some patronize? We want to be found waiting and watching, with our garments made white and clean in the blood of the Lamb.—Letter 29, 1882

We are looking for the second coming of our Lord and Saviour Jesus Christ. We are not only to believe that the end of all things is at hand. We are to be filled with the advent spirit that when the Lord comes He may find us ready to meet Him, whether we are working in the field, or building a house, or preaching the Word; ready to say, “Lo, this is our God; we have waited for Him, and He will save us” (Isaiah 25:9).—Letter 25, 1902,