Heaven will be filled with commandment-keeping people; for it is written, "Blessed are they that do His commandments, that they may have right to the tree of life, and may enter in through the gates into the city." Revelation 22:14. We can not keep these commandments ourselves any more than the children of Israel could in the wilderness. It is for this that Christ died on Calvary. Through Him we can have forgiveness for our sins, and receive help to overcome sin and obey the law of God. While Moses was in the mount God gave him instructions for building the sanctuary. It was to be like the one in heaven. In it the Lord would meet His people and give them such instruction as they needed. Provision was also made in it for sacrifices and offerings, all of which were to show their faith in the Saviour to come. Moses was in the mountain one-ninth of a year. The faith of the people was not strong enough to endure the long separation from their leader. They did not think he would return to them. They said, "As for this Moses, ... we wot not what has become of him." They came to Aaron and said to him, "Up, make us gods, which shall go before us." They would make to themselves a calf as their leader to take the place of Moses, and then go on to the promised land without him. The old habits of idol worship in Egypt had come back to them. So Israel brought their ornaments of gold to Aaron, and he made of them a golden calf. The calf represented Apis, the god held most sacred by the Egyptians. When it was done the people gathered around it and cried, "These be thy gods, O Israel, which brought thee up out of the land of Egypt." Exodus 32:4. How could they so soon forget the wonders and plagues brought by the Lord upon Egypt! How could they forget the terrible day when God spake to them His law from the top of Mount Sinai! And the Lord said to Moses, "Get thee down, for thy people have corrupted themselves." As Moses came in sight of the camp of Israel, and saw their heathen worship, he was filled with horror and anger. In his hands he bore the tables of the sacred law which they were transgressing. He threw them down, and they were broken in pieces at the foot of the mount. This was to remind the Israelites that they had broken God's law which they had promised to obey. In consequence of this they could not claim the promise He had made them. Through the pleading of Moses, God spared Israel at this time, but the rebellion and evil must be put away from among them. Moses called for a separation in the camp. Some had not joined in the idolatry, but through it all had remained true to God. These were asked to take their place at the right hand of Moses. Many others saw how wicked they had been, and repented. These took their stand at the left. Others were stubborn and would not repent, and would not come by the side of Moses at all. About three thousand of the leaders in wickedness perished at the command of the Lord, and the camp was cleansed.