The answer from God’s word:
The work of the Holy Spirit is always moving forward, and all those who are in the stream of the Holy Spirit should also be progressing deeper and changing, step-by-step. They should not stop at a single stage. Only those who do not know the work of the Holy Spirit would remain amongst His original work, and not accept the new work of the Holy Spirit. Only those who are disobedient would be incapable of gaining the Holy Spirit’s work. If the practice of man does not keep pace with the new work of the Holy Spirit, then the practice of man is surely dissevered from the work of today, and is surely incompatible with the work of today. Such outdated people as these are simply incapable of accomplishing God’s will, much less could they become those final people that will stand testimony to God. The entire management work, furthermore, could not be concluded amongst such a group of people. For those who once held to the law of Jehovah, and those who once suffered for the cross, if they cannot accept the stage of work of the last days, then all that they did will have been in vain, and useless.