The predestinated elect are people who have been chosen by God for a specific purpose to serve Him here on earth and ensure that His plan is carried out exactly as written (Jer 1:4-5, Rom 8:28-30). These sanctified, or set aside, ones have been selected because of their performance and loyalty to God during the rebellion of satan in the first earth age (Rom 11:4-5).
God knows He can count on His saints to remain loyal and never be deceived by satan (Matt 24:24, Rev 20:4-5). For this reason, this flesh age is not a test for these people–because they have already proven themselves and been justified (Rom 8:28-39) –and this means that they do not need to be allowed complete free will (Rom 8:26-27). God often will place His elect in the right place at the right time so that His will is fulfilled.
Elect have been born throughout the ages and called by God to be His prophets and apostles and any other roles that needed to be filled. But also, in the end times, there are currently 7000 of these servants that are predestinated (Rom 11:4-5), and He uses His elect as teachers who will share the pure, unadulterated truth with the rest of His children with the hopes that many of them, 144,000, will wake up and become dedicated enough to be chosen to have a role in the end times as well (Rev 7).
The 7000 (the predestination), as well as the 144,000, will be sealed with the knowledge of the Holy Spirit, and this will guarantee that they will not bow down and worship antichrist and receive his mark of the beast (Rev 14:1-5). They will not be deceived by him, nor believe that he is Jesus returned, as Jesus will return after the tribulation (Matt 24:29-31, Mark 13:24-27).
In the second half of the tribulation, the elect will be delivered up to councils to testify as to why they will not bow to antichrist. When delivered up, they should not premeditate what they will say at that time, but instead the Holy Spirit will literally speak through their mouths (Matt 10:17-24, Mark 13:9-13, Luke 12:11-12, 21:12-15, Rev 2:10).
The predestinated elect and the 144,000 are the only people in the world (Matt 24:24), aside from some of God’s servants that are dispersed throughout the gentile population, who will not be deceived by antichrist and his one world religious system (Rev 12:9, 13:13-14).
During the Millennium, the elect, called the zadok levites, will serve Jesus as teachers (Eze 44:23), priests (Eze 44:15, 44:27-31), kings (Rev 20:4) and judges (Eze 44:24), as well as they will directly serve Jesus in His inner court (Eze 44:15-16, 44:27). These are the people that God knows He can always count on.