One theme that runs throughout the preaching and writing of the apostles is the certainty of thr Lord's return. It had its beginning in the teachings of Jesus himself and is reflected in all four of the Gospels. Sometimes it is a teaching which was accepted by Jesus in making an argument or in presenting some other teaching. One of the earliest references is that found in Luke 12:39-40. Jesus was warning his disciples to be watchful for the coming of the Son of man. He reffered to a house master whose house had been invaded by a thief. He said that if the master of the house had known when the thief was coming, he would have been watchful. He followed the story with an application: "Be you also ready, for in an hour that you think not, the Son of man comes." When Peter asked if Jesus meant that parable for them or for his disciples at large, Jesus answered with another story which seems to suggest that "whenever the conditions are met, apply the story."
Another occasion when Jesus spoke of the certainty of his coming is recorded in Luke 17:22-37. The Pharisees had asked him when the kingdom of God would come. His answer to them was that the kingdom is an inner spiritual thing, it does not come with outward manifestations. Then to his disciples he spoke of the days that would come when they would desire to see his coming. The major emphasis in this passage is on the self-evident nature of the second coming: when it becomes reality, men will recognize it without having to be informed that it has taken place. However, it is important also that Jesus spoke definitely of his coming as a matter of certainty.
In Matthew 19:28 Jesus spoke in terms which assumed his second coming. Simon Peter had inquired about the future of the disciples, for they had given up much to become Jesus followers. Jesus assured Peter that everyone who gives up anything in this life for the Lord will recieve a hundredfold in return in the present, will recieve everlasting life in the future, and when the Son of man sits upon his glorious throne in the consummation of God's purposes among men, his followers will share his glory with him.
Another example of Jesus referring to his second coming is the passage which is recorded in Matthew 26:64 and Mark 14:62. The occasion was Jesus trial before the Sanhedrin. When the high priest put Jesus under oath to say whether or not he was the Christ, the Son of God, Jesus answered, "I am." He followed this declaration with the statement that he would be vindicated in his claim to be the Son of God when he should come on the clouds of heaven and sit at the right hand of power. This claim to be the Son of God was sufficient to cause the high priest to call for a vote of the court on the matter of whether or not Jesus had blasphemed. Some interpreters understand this passage to be a reference to Jesus work through his disciples while others understand it to be a reference to the second coming because of the statement regarding his "coming in the clouds of heaven," a term used in the New Testament and by the early writers to refer to the coming of Christ.
On one notable occasion Jesus discussed the certainty of his second coming in response to a question that was asked by his disciples. The passage is found in parallel in Matthew 24-25, Mark 13, and Luke 21:5-36. The disciples question was related to the destruction of Jerusalem and to Jesus coming at the end of the world. They asked the question in a way that indicated that in their minds the two events would be one, Jesus however, answered in a way that indicated that they were in error and that the destruction of Jerusalem would be one thing and his coming at the end of the world would be another. It is difficult to determine exactly where he stopped talking about one event and started talking about the other. It appears, however, that in Matthew 24:29 to 25:46 the major emphasis was on his second coming. There can be no question as to the certainty in the mind of Jesus of that coming.
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