Parable of the Wheat and the Tares
Matthew 3:11 "Indeed I immerse you in water for repentance, but He coming after me is more powerful than me, of whom I am not worthy to carry the sandals. He shall immerse you in the Holy Spirit, and in fire! 12 Of whom the winnowing fan is in His hand, and He shall purge His threshing-floor and He shall gather His grain into His storehouse, but the chaff He shall burn with unquenchable fire!”
John says that he immerses in water, but that is not the mission of the Christ. This is also expressed in Acts chapter 1, verse 4 where it says “Iohannes immersed in water, but you shall be immersed in the Holy Spirit ”. This last statement is parallel to the Parable of the Wheat and the Tares found in Matthew chapter 13. The phrase “the winnowing fan is in His hand” means that judgement belongs to Christ, however that was not the purpose of His first advent.