This subject was not understood by Adventists in 1844. After the passing of the time when the Saviour was expected, they still believed His coming to be near; they held that they had reached an important crisis and that the work of Christ as man’s intercessor before God had ceased. It appeared to them to be taught in the Bible that man’s probation would close a short time before the actual coming of the Lord in the clouds of heaven. This seemed evident from those scriptures which point to a time when men will seek, knock, and cry at the door of mercy, and it will not be opened. And it was a question with them whether the date to which they had looked for the coming of Christ might not rather mark the beginning of this period which was immediately to precede His coming. Having given the warning of the judgment near, they felt that their work for the world was done, and they lost their burden of soul for the salvation of sinners, while the bold and blasphemous scoffing of the ungodly seemed to them another evidence that the Spirit of God had been withdrawn from the rejecters of His mercy. All this confirmed them in the belief that probation had ended, or, as they then expressed it, “the door of mercy was shut.” (GC 429.1) MC VC

But clearer light came with the investigation of the sanctuary question. They now saw that they were correct in believing that the end of the 2300 days in 1844 marked an important crisis. But while it was true that that door of hope and mercy by which men had for eighteen hundred years found access to God, was closed, another door was opened, and forgiveness of sins was offered to men through the intercession of Christ in the most holy. One part of His ministration had closed, only to give place to another. There was still an “open door” to the heavenly sanctuary, where Christ was ministering in the sinner’s behalf. (GC 429.2) MC VC

Men cannot with impunity reject the warning which God in mercy sends them. A message was sent from heaven to the world in Noah′s day, and their salvation depended upon the manner in which they treated that message. Because they rejected the warning, the Spirit of God was withdrawn from the sinful race, and they perished in the waters of the Flood. In the time of Abraham, mercy ceased to plead with the guilty inhabitants of Sodom, and all but Lot with his wife and two daughters were consumed by the fire sent down from heaven. So in the days of Christ. The Son of God declared to the unbelieving Jews of that generation:“Your house is left unto you desolate.” Matthew 23:38. Looking down to the last days, the same Infinite Power declares, concerning those who“received not the love of the truth, that they might be saved”:“For this cause God shall send them strong delusion, that they should believe a lie: that they all might be damned who believed not the truth, but had pleasure in unrighteousness.” 2 Thessalonians 2:10-12. As they reject the teachings of His word, God withdraws His Spirit and leaves them to the deceptions which they love. (GC 431.1) MC VC

But Christ still intercedes in man’s behalf, and light will be given to those who seek it. Though this was not at first understood by Adventists, it was afterward made plain as the Scriptures which define their true position began to open before them. (GC 431.2) MC VC

The passing of the time in 1844 was followed by a period of great trial to those who still held the advent faith. Their only relief, so far as ascertaining their true position was concerned, was the light which directed their minds to the sanctuary above. Some renounced their faith in their former reckoning of the prophetic periods and ascribed to human or satanic agencies the powerful influence of the Holy Spirit which had attended the advent movement. Another class firmly held that the Lord had led them in their past experience; and as they waited and watched and prayed to know the will of God they saw that their great High Priest had entered upon another work of ministration, and, following Him by faith, they were led to see also the closing work of the church. They had a clearer understanding of the first and second angels’ messages, and were prepared to receive and give to the world the solemn warning of the third angel of Revelation 14. (GC 431.3) MC VC