When will the Old Testament Saints and Tribulation Believers come back in resurrection bodies?

The Old Testament Saints and Tribulation Believers will come back in resurrection bodies 75 days after the Second Coming, or after the Kingdom has been set up. They will then be part and parcel of the Kingdom, completing the resurrection of the just of all the ages.

Les teaches that the resurrection of the just appears in three parts: the first fruits at Christ’s time, the general harvest, and the Rapture of the Church. The final aspect, pictured by the corners and gleanings, is the Old Testament Saints and Tribulation Believers. As seen from Daniel, they will come back in resurrection bodies 75 days after the Second Coming, or after the Kingdom has been set up. They will then be part and parcel of the Kingdom, and that will complete the resurrection of the just of all the ages.

Daniel 12

Are Old Testament saints resurrected at the same time as the rapture of the church?

Old Testament saints are not resurrected at the same time as the rapture of the church. They are part of a separate group, the gleanings and corners, resurrected at a slightly different time. Daniel specifies this resurrection, which also includes the tribulation saints. They are not in the body of Christ, so they are resurrected separately.