When Moses was distressed because of the greatness of the task of leading the children of Israel through the wilderness, God commanded him to gather seventy elders to help him carry the burden (Numbers 11:16And the LORD said unto Moses, Gather unto me seventy men of the elders of Israel, whom thou knowest to be the elders of the people, and officers over them; and bring them unto the tabernacle of the congregation, that they may stand there with thee.
See All...). Moses gathered the seventy round about the tabernacle and the spirit that was on Moses rested on the seventy (Numbers 11:24-25 [24] And Moses went out, and told the people the words of the LORD, and gathered the seventy men of the elders of the people, and set them round about the tabernacle. [25] And the LORD came down in a cloud, and spake unto him, and took of the spirit that was upon him, and gave it unto the seventy elders: and it came to pass, that, when the spirit rested upon them, they prophesied, and did not cease.
See All...).

However, two men were not of the seventy and they did not go to the tabernacle: Eldad and Medad (Numbers 11:26-29 [26] But there remained two of the men in the camp, the name of the one was Eldad, and the name of the other Medad: and the spirit rested upon them; and they were of them that were written, but went not out unto the tabernacle: and they prophesied in the camp. [27] And there ran a young man, and told Moses, and said, Eldad and Medad do prophesy in the camp. [28] And Joshua the son of Nun, the servant of Moses, one of his young men, answered and said, My lord Moses, forbid them. [29] And Moses said unto him, Enviest thou for my sake? would God that all the LORD's people were prophets, and that the LORD would put his spirit upon them!
See All...). Yet, "they were of them that were written" and "the spirit rested upon them" and "they prophesied in the camp" (v.26). When Joshua heard of their preaching, he asked Moses to forbid them but Moses refused: "Enviest thou for my sake? would God that all the LORD'S people were prophets, and that the LORD would put his spirit upon them!"

Are you of them that are written? Are you full of envy over what someone else is doing? Or, are you simply serving God with all you might in the camp where He has left you?