Jesus said to them, “I assure you and most solemnly say to you, in the renewal [that is, the Messianic restoration and regeneration of all things] when the Son of Man sits on His glorious throne, you [who have followed Me, becoming My disciples] will also sit on twelve thrones, judging the twelve tribes of Israel.

He saved us, not because of any works of righteousness that we have done, but because of His own compassion and mercy, by the cleansing of the new birth (spiritual transformation, regeneration) and renewing by the Holy Spirit,

“For this is the covenant that I will make with the house of Israel After those days, says the Lord: I will imprint My laws upon their minds [even upon their innermost thoughts and understanding], And engrave them upon their hearts [effecting their regeneration]. And I will be their God, And they shall be My people.