To harvest is to gather things planted. It is a natural time of reaping in joy what has been produced in its season. The biblical harvest alludes to judgment for those who are not planted by and rooted in Jesus Christ.
The Parable of The Wheat and The Tares
In the book of Mathew, Chapter 13:24-28, Jesus described the last judgment in a parable of the Kingdom. Its about the harvest where the enemy (Satan) sowed tares (false prophets, false doctrine, Satan's helpers: professed believers that are actually deceivers; leaven) in God's vineyard (the world) in order to frustrate (defeat; disrupt) the good seed (the church, body of Christ; believers), that which God had planted. The tares will be plucked up and burned and the wheat will be gathered into His barn. He said, "Let both grow together until the harvest, and at the time of harvest I will say to the reapers, “First gather together the tares and bind them in bundles to burn them, but gather the wheat into my barn (Mathew 13:30).
How Can One Get Ready For The Harvest?
Repent. "If thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved (Romans 10:9)."Seek ye the Lord while he may be found, call ye upon him while he is near: Let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the Lord, and he will have mercy upon him; and to our God, for he will abundantly pardon (Isaiah 55:6-7).