The Holy Spirit will be delivering an uncountable (in John's day uncountable) number of souls who cry out to God during the Tribulation. These are not part of The Bride of Christ, for their crying out to the Lord is no longer believing on faith but believing because the foretold events are being witnessed! When Thomas believed because he saw the risen Lord, Jesus told him blessed are they who will believe without seeing Him in person.
Ping to a series of exchanges you find of interest.