"Thrust in Your sickle and reap, for the time has come for You to reap,f or the harvest of the earth is ripe." (Revelation 14:b, NKJV)
The time is drawing near when Christ will participate in the judgment of all sin and unrighteousness on this earth. We don't know the moment of this event but it certainly is closer today than when John recorded this for the seven churches in Asia.
Two thoughts emerge from this impending judgment; first, this gives great encouragement to all believers of any age that God through Jesus Christ will judge and punish all unrighteousness; and second, we must work while it is day because the night is coming when no man can work - we are to preach the gospel to every creature.
Jesus told the seventy disciples as He commissioned them to go into the harvest to pray that the Lord of the harvest would send out laborers into His harvest.
Let me ask you; are you praying regularly that the Lord of the harvest would send laborers into His harvest?