12, 13. (a) Why do the 144,000 “holy ones” need to be declared righteous? (b) What do they do with the life rights they receive?

¹² Still, for what impelling reason do Christians who are “called to be holy ones” need to be declared righteous? This is where the second aspect of justification comes into account, namely, God’s declaring a person worthy of life as His perfect human son. Due to the role they are called upon to play in the righteous “new heavens,” the 144,000 must renounce and sacrifice forever any hope of life everlasting on earth. (Psalm 37:29; 115:16) In this sense they die a sacrificial death. They ‘submit themselves to a death like Christ’s.’​—Philippians 3:8-11.

¹³ Now, in line with the principle set forth in the Mosaic Law, any sacrifice presented to Jehovah must be without defect. (Leviticus 22:21; Deuteronomy 15:21) The 144,000 “holy ones” are spoken of as “righteous ones who have been made perfect.”​—Hebrews 12:23.

17. (a) Although declared righteous, what do anointed Christians need to do daily? (b) How do they receive their reward?

¹⁷ While yet on earth, these anointed Christians, although declared righteous, still have to fight their sinful tendencies. (Romans 7:15-20) They need Christ’s blood to cleanse them from their daily sins of imperfection. (1 John 1:7; 2:1, 2)