2 Corinthians 3:7 elaborates on the ministry of death engraved on stone, providing the immediate contrast to the Spirit-written letter.

2 Corinthians 6:16 calls believers the temple of the living God, reinforcing the indwelling Spirit who writes on hearts.

Exodus 31:18 describes God writing the law on stone tablets — the very thing Paul contrasts with the Spirit-written letter on hearts.

Hebrews 10:16 repeats the new covenant promise of laws written on hearts — the same Spirit-written letter Paul describes.

Hebrews 8:10 quotes the new covenant: 'I will put my laws into their minds and write them on their hearts' — directly echoing Paul's letter written on hearts.

Ezekiel 36:25-27 promises God will put His Spirit within and cause obedience from the heart — the same internal transformation Paul sees as the Spirit writing on hearts.

Jeremiah 31:33 promises God will write his law on hearts—the new covenant prophecy Paul sees fulfilled by the Spirit in this verse.

Psalm 40:8 delights in God's law within the heart—an OT anticipation of the internal writing Paul describes the Spirit accomplishing.

Exodus 34:1 describes God writing on the second set of stone tablets—another instance of the stone-tablet tradition Paul contrasts with Spirit-written hearts.

Exodus 24:12 records the stone tablets God wrote—the very object Paul contrasts with hearts inscribed by the Spirit.

Proverbs 3:3 urges writing love and faithfulness on the tablet of your heart — the same metaphor Paul uses for the Spirit's work.

Proverbs 7:3 instructs writing your father's commands on the tablet of your heart — the same 'tablets of human hearts' imagery Paul employs.

Deuteronomy 27:3 commands writing the law on plastered stones — Paul contrasts this external writing with the Spirit's internal inscription on hearts.

Deuteronomy 9:10 says the tablets were written by the finger of God — Paul contrasts that stone inscription with the Spirit's writing on hearts.

Ezekiel 36:26 promises a heart of flesh replacing stone, directly fulfilled in the Spirit's writing on hearts here.

Deuteronomy 6:6 commands that God's words be upon your heart — Paul applies this internalization to the Spirit's work in believers.

Exodus 32:16 describes the tablets inscribed by God's own finger — Paul contrasts this stone writing with the Spirit's writing on hearts.

Jeremiah 17:1 describes sin engraved on the heart's tablet, contrasting with Paul's letter of Christ written by the Spirit.

Ezekiel 11:19 promises replacing a heart of stone with flesh—similar imagery of divine inner transformation, echoing Paul's stone-tablet vs heart contrast.

Isaiah 51:7 speaks of God's law in the heart, an OT promise echoed here as the Spirit writes Christ's letter on believers' hearts.