What will the apostles do on twelve thrones in the regeneration?
In the regeneration, when the Son of Man sits on the throne of His glory, the apostles who followed Him will sit on twelve thrones, ruling the twelve tribes of Israel. The regeneration is when the earth is regenerated and brought back to the garden of Eden state.
Les explains that Peter asked what he and the others would have, since they had forsaken all to follow Jesus. The Lord did not rebuke him but answered that in the regeneration—when the earth is restored to the garden of Eden state—they who followed Him will sit on twelve thrones, ruling the twelve tribes of Israel when the Son of Man sits on His throne of glory as King of kings. Les notes Peter was focused on reward, not salvation, and that this passage does not mention the power of resurrection or the atoning shed blood, though in the mind of God that was all there.
And Jesus said unto them, Verily I say unto you, That ye which have followed me, in the regeneration when the Son of man shall sit in the throne of his glory, ye also shall sit upon twelve thrones, judging the twelve tribes of Israel.