Matthew 6:12 contains the prayer's wording 'forgive us as we forgive' — the direct source for the condition stated here.

Matthew 5:7 promises mercy to the merciful — the same conditional principle that underlies the warning about unforgiveness here.

Matthew 18:35 warns that the Father will not forgive those who don't forgive from the heart — a direct parallel to this verse.

Genesis 50:17 shows Joseph's brothers begging for forgiveness — illustrating the plea that should be granted according to the main verse.

Exodus 34:7 reveals God's character of forgiving but also punishing sin — echoing the conditionality of divine forgiveness in the main verse.

Deuteronomy 15:2 commands releasing debts — a concrete picture of the forgiveness taught in the main verse.

Mark 11:25 similarly ties forgiving others to receiving forgiveness from God — a parallel teaching.

Luke 6:37 includes 'forgive, and you will be forgiven' — the same conditional promise as here.

Luke 11:4 echoes the same condition: forgive others to be forgiven by God — both in the Lord's Prayer.

Ephesians 4:32 grounds forgiving others in Christ's forgiveness of us — the same reciprocal logic as here.

Colossians 3:13 also ties forgiving others to the Lord's forgiveness — a direct parallel to this condition.

James 2:13 warns that judgment without mercy awaits the unmerciful — mirroring the principle of unforgiving leading to unforgiven.

Proverbs 11:17 teaches that mercy benefits the merciful — parallel to the principle that forgiveness brings forgiveness from God.

Deuteronomy 15:15 reminds Israel of their redemption as motivation for mercy — a basis for the forgiveness command.