'Compensation' in the Bible

For what will a man give in exchange for his soul and eternal life [in God’s kingdom]?

For we know Him who said, “Vengeance is Mine [retribution and the deliverance of justice rest with Me], I will repay [the wrongdoer].” And again, “The Lord will judge His people.”

Do not, therefore, fling away your [fearless] confidence, for it has a glorious and great reward.