Read Revelation 20.
Satan was bound with a chain and shut up in the Abyss, making him unable to deceive the nations for one thousand years. This opens the way for Jesus to demonstrate that a righteous rule, based upon God's word and with His agenda, will bring satisfaction and joy to the world.
Our opportunity to receive grace will not last forever, and our chance to share that grace with those who don't know the Lord will not last forever either.
Also read Malachi 1.
The lesson is that our worship must be genuine and from the heart. God sees and knows how we come to Him. A ho-hum approach is not acceptable when coming before the God of the universe.
Now that same day two of them were going to a village called Emmaus, about seven miles from Jerusalem. They were talking with each other about everything that had happened. As they talked and discussed these things with each other, Jesus himself came up and walked along with them; but they were kept from recognizing him.
He asked them, “What are you discussing together as you walk along?”
They stood still, their faces downcast. One of them, named Cleopas, asked him, “Are you the only one visiting Jerusalem who does not know the things that have happened there in these days?”
“What things?” he asked.
“About Jesus of Nazareth,” they replied. “He was a prophet, powerful in word and deed before God and all the people. The chief priests and our rulers handed him over to be sentenced to death, and they crucified him; but we had hoped that he was the one who was going to redeem Israel. And what is more, it is the third day since all this took place. In addition, some of our women amazed us. They went to the tomb early this morning but didn’t find his body. They came and told us that they had seen a vision of angels, who said he was alive. Then some of our companions went to the tomb and found it just as the women had said, but they did not see Jesus.”
He said to them, “How foolish you are, and how slow to believe all that the prophets have spoken! Did not the Messiah have to suffer these things and then enter his glory?” And beginning with Moses and all the Prophets, he explained to them what was said in all the Scriptures concerning himself.
As they approached the village to which they were going, Jesus continued on as if he were going farther. But they urged him strongly, “Stay with us, for it is nearly evening; the day is almost over.” So he went in to stay with them.
When he was at the table with them, he took bread, gave thanks, broke it and began to give it to them. Then their eyes were opened and they recognized him, and he disappeared from their sight. They asked each other, “Were not our hearts burning within us while he talked with us on the road and opened the Scriptures to us?”
They got up and returned at once to Jerusalem. There they found the Eleven and those with them, assembled together and saying, “It is true! The Lord has risen and has appeared to Simon.” Then the two told what had happened on the way, and how Jesus was recognized by them when he broke the bread.
How great would it be to be one of the two walking when Jesus came beside them and showed them the scriptures? What would your reaction be? I'm not entirely sure what mine would be but I would sure be in awe. He explained to them that the promises of the Old Testament scriptures pointed to Him and were being fulfilled before their eyes.