Where does Paul teach that church age believers will be caught up to meet the Lord in the air?

Les explains that Paul lays out the catching up of church age believers in the later part of 1 Corinthians 15, and then in 1 and 2 Thessalonians, where the church age believers will be caught up to meet the Lord in the air. He notes they did not have time to pick up the Old Testament believer, so now they go back to Daniel chapter 12. Daniel 12 probably says the most about resurrection, though Job and David also expected resurrection. Les points out that unbelievers are not going to be resurrected at the same time as the believer.