Ecclesiastes 1:9 "The thing that hath been, it is that which shall be; and that which is done is that which shall be done: and there is no new thing under the sun."
Solomon, with the guidance of the Spirit of God, is telling you that those things that have happened before, will happen again. It is important that you understand this. There is no new idea or thing that can happen to man that has not already happened to man. Remember that "under the sun" in in reference to "this flesh body of man".
This point helps us understand the Word of God, and the types that the prophets of old give us in their writings. Paul told us in I Corinthians 10:11; "Now all these things happened unto them for ensamples: and they are written for our admonition, upon whom the ends of the world are come."
"Ends of the world", means the ends of this earth age, or dispensation where man lives in his flesh body. Paul told us that all those things that were written by the prophets of man's actions, and what happened to them when they either violated God's law, or kept God's law were examples to us, for there is no new thing that will happen to flesh man, that has not already happened to others in the past. We are to study God's Word, and by our understanding of His Word, we can have the peace of mind that comes with God's faithfulness to His Word.
There is nothing new under the sun, even to the point of what happens at the end of this earth age, is a copy of what happened at the end of the first earth age. God has detailed out for us in His Word all events that will take place, right up to His second coming at the sounding of the seventh and final trumpet. He has name the signs, and given us examples even of the one world system that is coming upon us now, and will rule the minds of all mankind very shortly, all that is, except God's elect who know the truths, and will not be deceived.