And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword against nation, neither shall they learn war any more. (Isaiah 2:4)
And if the family of Egypt go not up, and come not, that have no rain; there shall be the plague, wherewith the Lord will smite the heathen that come not up to keep the feast of tabernacles. (Zech 14:18)
Each time scripture discusses the Second Coming of Christ it talks about the restoration of the temple. In Isaiah 2, presents the idea that the judgement and rebuke of the temple is what brings about peace on Earth. Zechariah seems to suggest some sort of coercion with regard to the temple.
However, there is no physical coercion in religion, but only the fact that blessings only come by way of obedience. Eventually there will be no other way to succeed bur by obedience to God's laws. In todays society, a person in poverty may seek to elevate themselves by hard work and clean living. However, another person may see an alternate path of escaping poverty through illicit means. Eventually, with the light of the temple those alernate paths will no longer be available.
Just like secret evil circles require members to commit certain unspeakable acts to determin whom they can trust, the Lords House is the original institution which worked similar but opposite. The Lord's people can know and properly judge an individual by the temple and the keeping of their covenants. The wicked cannot bare the requirements of the temple long term if at all.
Maybe this is what Christ was referring to when He taight that "by their fruits ye shall know them". Christ warned His people of wolves in sheeps clothing. Had the Missouri Saints built the temple, they were primised to have been able to "see the enemy afar off" before they had been infiltrated and animosities fomented leading to their eventual expulsion.
"And even so I have sent mine everlasting covenant into the world, to be a light to the world, and to be a standard for my people, and for the Gentiles to seek to it, and to be a messenger before my face to prepare the way before me."(D&C45:9)