Afterward we the living who are surviving will, together with them, be caught away in clouds to meet the Lord in the air; and thus we shall always be with the Lord.”

The “slaves” remaining on earth during his presence, as they die, will, “together with them, be caught away in clouds to meet the Lord in the air.” That is, during Christ’s invisible presence, represented by clouds, they will join those already resurrected. From then on they will always be with the Lord.