"Then will appear the sign of the Son of Man in heaven. And then all the peoples of the earth will mourn when they see the Son of Man coming on the clouds of heaven, with power and great glory." - Matthew 24:30
C.S. Lewis explained this well in his insightful book, Mere Christianity, which I just discovered recently. I would recommend this book to anyone who has questions about the Christian faith, no matter what you currently believe. This was his answer:
"Another possible objection is this, Why is God landing in this enemy-occupied world in disguise and starting a sort of secret society to undermine the devil? Why is He not landing in force, invading it? Is it that He is not strong enough? Well, Christians think He is going to land in force; we do not know when. But we can guess why He is delaying: He wants to give us the chance of joining His side freely.
I do not suppose you and I would have thought much of a Frenchman who waited till the Allies were marching into Germany and then announced he was on our side. God will invade. But I wonder whether people who ask God to interfere openly and directly in our world quite realize what it will be like when He does. When that happens, it is the end of the world. When the author walks onto the stage the play is over. God is going to invade, all right, but what is the good of saying you are on His side then, when you see the whole natural universe melting away like a dream and something else - something it never entered your head to conceive - comes crashing in; something so beautiful to some of us and so terrible to others that none of us will have any choice left?
For this time it will be God without disguise; something so overwhelming that it will strike either irresistible love or irresistible horror into every creature. It will be too late then to choose your side. There is no use saying you choose to lie down when it has become impossible to stand up. That will not be the time for choosing; it will be the time when we discover which side we really have chosen, whether we realized it before or not. Now, today, this moment, is our chance to choose the right side. God is holding back to give us a chance. It will not last forever. We must take it or leave it."
This view is supported in the Bible - as we see from the verse above from Matthew 24:30, "all the peoples of the earth will mourn" because they will realize the truth and where their decision fell, or where their loved ones' decisions fell. We are in an urgent situation to spread the truth of the Gospel to all peoples!
If this strikes a chord with you, make the decision now to choose God's side. You know deep down that there is a choice to be made. If you have been uncertain up to now, I hope this encourages you to get off the fence, to make the decision to follow Jesus Christ, surrender your life to Him, and ask Him to fill you with His love. Then, like C.S. Lewis, you can look forward to the day God reveals Himself to the earth with joy and anticipation!
"Then Jesus told him, "Because you have seen me, you have believed;
blessed are those who have not seen and yet have believed." - John 20:29