“Whereas the old law proclaimed that God was the Maker and Lord of heaven, and laid down God-pleasing ordinances for those under the law, it did not give any promise of heavenly benefits, nor did it offer communion with God, or an eternal, heavenly, inheritance to those who obeyed it. But once Christ the King of all had visited us in the flesh ‘to call sinners,’ as He says Himself, ‘to repentance’ (Matt 9:13), there were greater rewards for those who obeyed and repented, and, through works of repentance, ordered their lives according to Christ’s gospel, keeping the holy commandments it contains.
Nor were these rewards simply greater, but also incomparably more excellent.
For what was promised was
the kingdom of heaven,
light without evening,
heavenly adoption as sons,
and a divine and eternal way of life,
and even more than this:
for we shall be ‘heirs of God, and joint-heirs with Christ’ (Rom. 8:17), and ‘I am come,’ says the Lord, ‘that ye might have life, and that ye might have it more abundantly’ (cf. John 10:10).
These are not resounding but empty phrases, nor just a litany of vain words, but an account of the unchanging things actually stored up as prizes for those who believe and live according to Christ.”
(St. Gregory Palamas, The Homilies, p. 445)