Isaiah 65:20: God's justice & mercy?
How does Isaiah 65:20 reflect God's justice and mercy in the new creation?

The Text Itself

Isaiah 65:20: ‘No longer will a nursing infant live but a few days, or an old man not live out his years. For a youth will die at a hundred years—and he who fails to reach a hundred will be considered accursed.’


What We’re Seeing in the Verse

• Earthly life-spans stretch dramatically—no infant funerals, no lives cut short.

• A “youth” is still considered young at one hundred.

• Yet sin is still possible; a person forfeiting a full century is “considered accursed.”


Mercy: God’s Gift of Lengthened Days

• Protection of the most vulnerable—infants—speaks of tender care (cf. Isaiah 40:11).

• Longevity restores what sin stole in Genesis 3 (cf. Romans 5:12).

• Extended life provides amplified opportunity to enjoy God’s good creation (Isaiah 65:17-19).

• The picture anticipates Revelation 21:4, where death itself is finally removed; Isaiah’s language hints at that trajectory.


Justice: Sin Still Has Consequences

• Even amid blessing, moral accountability remains; cutting life short at less than one hundred shows God’s consistent standard (cf. Ezekiel 18:4).

• The term “accursed” reminds us God will not overlook rebellion (cf. Galatians 6:7).

• Justice here is measured, proportionate—swift destruction is absent, yet sin is unmistakably discouraged.


How Justice and Mercy Intertwine

• Mercy dominates—life abounds, curses recede, joy rises (Isaiah 65:18-19).

• Justice safeguards mercy; the threat of curse preserves communal righteousness (cf. Isaiah 11:4-5).

• Together they foreshadow the final state when mercy is perfected and justice fully satisfied through Christ (Revelation 22:3-5).


Living in Light of Isaiah 65:20

• Confidence: God will literally renew the earth and remove the sting of premature death.

• Sobriety: Even now, sin still carries real consequences; holiness matters.

• Hope: The balance of justice and mercy guarantees a future both safe and joyous for all who trust Him (Psalm 145:17).

In what ways can we apply the hope of Isaiah 65:20 today?
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