Revelation 16:6 says God gives blood to drink to those who shed saints' blood — a specific enactment of the measure-for-measure rule.

Revelation 14:12 repeats the exact phrase 'endurance of the saints' and the call to keep faith, strongly reinforcing Rev 13:10's demand.

Revelation 18:6 commands repaying Babylon double for her deeds, directly reinforcing the lex talionis theme of receiving what you inflict.

Revelation 11:18 speaks of destroying those who destroy the earth, mirroring the retributive justice of 'by the sword you will be killed.'

Revelation 6:4 shows a rider given a sword to kill, illustrating the same swords‐and‐killing cycle that Rev 13:10 pronounces.

Revelation 3:10 promises to keep those who have kept 'patient endurance' from trial — directly related to the endurance call in Rev 13:10.

Revelation 16:7 declares God's judgments true and just, affirming the righteous recompense implied in the sword‐for‐sword principle.

Revelation 2:19 again lists 'patient endurance' among the church's works, echoing the call in Rev 13:10.

Revelation 2:2 commends the church's 'patient endurance', the same virtue demanded in Rev 13:10 for the faithful.

In Revelation 1:9, John shares in the same 'patient endurance' that Rev 13:10 calls for in persecution. Same key term and tribulation context.

James 1:2-4 teaches that trials produce steadfastness, which is the endurance that Revelation 13:10 calls for among the saints.

James 5:7-8 urges patience until the Lord’s coming, providing the same patient endurance that Revelation 13:10 requires.

Genesis 9:5 requires a reckoning for lifeblood — directly parallel to Revelation's call for endurance under just retribution.

Hebrews 12:3 points to Christ’s endurance of hostility as the model to prevent growing weary, reinforcing the call to endure persecution.

Hebrews 10:36 explicitly states that endurance is needed to receive the promise, directly supporting the call to endure in Revelation 13:10.

Luke 21:19 directly promises that endurance will secure your life, echoing the same call to endure in tribulation.

Matthew 26:52 records Jesus' saying that all who take the sword will perish by it — a direct parallel to the second half of the maxim in Rev 13:10.

Matthew 7:2 teaches 'with the measure you use it will be measured to you' — the same reciprocal justice principle.

Isaiah 33:1 pronounces woe on the destroyer who will be destroyed — identical retributive logic as in Revelation 13:10.

Exodus 21:23-25 gives the lex talionis principle — 'life for life' — echoed in Revelation's measure-for-measure justice.

Joel 3:7 says God will 'return your payment on your own head'—a clear retributive principle identical to Revelation's lex talionis.

Jeremiah 30:16 promises that devourers will be devoured and captors taken captive—a direct Old Testament parallel to Revelation's justice.

Judges 1:7 states 'As I have done, so God has repaid me'—directly illustrating the retributive justice echoed in Revelation's 'by the sword'.

Hebrews 12:4 notes that the struggle hasn't yet led to bloodshed, contrasting with the imminent martyrdom implied in Revelation 13:10.

James 5:8 also urges patience, linking endurance to the Lord's coming—same call for steadfastness under trial.