And when he informed about their conditions as a means of intimidation, he followed that by informing about the conditions of the believers as a means of encouragement, saying, "And those who believed" in contrast to "those who denied."

And when he said, "And did righteous deeds," it means: as a confirmation of their faith in contrast to "those who were arrogant." "The righteous deeds" was a cause for the assumption that performing all righteous deeds - because it is a plural form with the definite article - is a condition for entering Paradise. He interjected that with a statement indicating alleviation, saying, "We do not burden a soul except to its capacity." And as encouragement to acquire what cannot be described of the bliss with what is within capacity, "Those are" meaning: of the highest rank, "the companions of Paradise." And since companionship indicates permanence, he clarified it by saying, "They are in it, abiding forever."