Can people be converted during the Great Tribulation?

Yes, conversions will take place during the Great Tribulation as confirmed by Revelation 7:9: “After this I beheld, and, lo, a great multitude, which no man could number, of all nations, and kindreds, and people, and tongues, stood before the throne, and before the Lamb, clothed with white robes, and palms in their hands.” However, these people do not belong to the Church of Jesus Christ. Notice their position and location: “Therefore are they before the throne of God, and serve him day and night in his temple: and he that sitteth on the throne shall dwell among them” (Revelation 7:15). But the Church's position and location is described in Revelation 21:22: “And I saw no temple therein: for the Lord God Almighty and the Lamb are the temple of it.”

How is it possible for people to be saved when the Holy Spirit has been removed? The Holy Spirit is removed as the Comforter for the Church, but the Holy Spirit is God, therefore omnipresent. A multitude of people will come to faith in the saving knowledge of the Lord Jesus Christ and trust Him for their salvation during the Great Tribulation.

Excerpt from the Book:

119 Most Frequently Asked Questions About Prophecy
by Arno Froese
#1055 - 176 pgs.