"And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his mark, and over the number of his name, stand on the sea of glass, having the harps of God." Revelation 15:2
Over the beast: the devil and his emissaries in the end times
Over the image: the image of the beast that was installed in Israel in the end times
Over the mark: The mark in the hand or the head as a means of identification to receive food and goods in the end times
Over the number of his name: 666 the number that represents the works of the devil in the end times
"Why bother? After all we will probably be gone on to be with the Lord by this time." I'll tell you why. If you are a believer you will be there. If these events take place before you die, you will have been informed about the events of the times through the book of Revelation. If you have gone on to be with the Lord by then you will be there. That's right, all of the book of Revelation is discussing what will be happening at different periods of time and you will be there participating. The vision that John saw, you were in. John was taken into the future and you were there.
It's just as important that you know what is going on at that time as it is in this time. That's the point of Book of Revelation. So many people think that it either shouldn't be read or that it is just for those in the future or that only theologians understand it. Nothing could be further from the truth. You were designed to read and understand the book of Revelation. It was written for you. Saying that it is too complicated or not understandable is like calling God a liar. Just check out the first three verses.
"The Revelation of Jesus Christ, which God gave unto Him, to shew unto His servants things which must shortly come to pass; and he sent and signified it by His angel unto His servant John: Who bare record of the Word of God, and of the testimony of Jesus Christ, and of all things that he saw. Blessed is he that readeth, and they that hear the words of this prophesy, and keep those things which are written therein: for the time is at hand." Revelation 1:1-3
Does this sound like God has designed some allegory or unknowable story that you should dismiss as unimportant or inconsequential? How can you be blessed by the book if you haven't read the book and how can you keep those things in the book if you don't know what they are. The book of Revelation is to be read, not feared, understood, not bemusing. Try just reading through one time before you use your concordance or commentaries or study guides. It's not that they won't help, because they will, but the help they give you is intellectual and the Word of God speaks to you internally spiritually.