What is the significance of praying, "forgive us our debts, as we forgive our debtors" (Matthew 6:12)?

from the old testament

• The idea of sin as “debt” is found in the Old Testament sacrificial system. When one sinned, they broke their relationship with God and needed to offer a sacrifice to restore it. For example, God said, “If anyone sins unintentionally in any of the LORD’s commandments about things not to be done, and does any one of them, if it is the anointed priest who sins, thus bringing guilt on the people, then he shall offer for the sin that he has committed a bull from the herd without blemish to the LORD for a sin offering” (Leviticus 4:1–3). The sacrifice was the way one could pay for the debt of sin.
• In addition to the daily sacrifices, God also instituted the “Year of Jubilee,” a time of debt forgiveness every 50 years, telling the Israelites, “You shall consecrate the fiftieth year, and proclaim liberty throughout the land to all its inhabitants. It shall be a jubilee for you, when each of you shall return to his property, and each of you shall return to his clan” (Leviticus 25:10). That year released debt, symbolically illustrating how Israel’s sin debt was “released” through forgiveness.

from the new testament

• Sometimes referred to as the “Lord’s Prayer,” though more accurately it’s the “Disciples' Prayer,” Jesus was teaching His disciples how to pray (cf. Luke 11:1). This is important, as the content of this prayer assumes the one praying is already saved. Thus, Matthew 6:12 is not a passage about how to be saved (through the forgiveness of debts) but how a believer reconciles their ongoing indebtedness to God.
• Matthew 6:12 reads, “forgive us our debts, as we also have forgiven our debtors.” The English translation “debts” rightly captures the word’s technical meaning, as it's a marketplace term that refers to owing money. However, we know that Jesus is using this word symbolically for sin. First, Scripture never says that we owe God money, so Jesus cannot be using it literally. Second, Luke records this same prayer, translating it as “and forgive us our sins, for we ourselves forgive everyone indebted to us. And lead us not into temptation” (Luke 11:4). His translation clarifies that Jesus meant: sin is being indebted to God.
• Being indebted to God doesn’t mean that one has lost their salvation. Instead, it’s a relational debt. Sin has damaged that relationship, and so the believer must pray to remove that “debt” by confessing their sin. This is true of all believers, since all believers sin (1 John 1:8–10).
• However, we are not to be like the wicked servant in a parable Jesus gave later on (Matthew 18:23–35). There, the king forgave the great debt of his servant after he begged forgiveness, only for that same servant to turn around and demand another slave pay him the little he owed, or else he would have him sent to prison. The wicked servant’s heart showed that he was undeserving of forgiveness, and thus he was cast into prison himself. While believers are not perfect, they are to be marked by the same heart of forgiveness as their Father. Jesus was indicating that the Father may not forgive even one of His children if they themselves have an unforgiving heart.
• While God not forgiving someone sounds hard, Jesus makes that clear in Matthew 6:14–15, saying, “For if you forgive others their trespasses, your heavenly Father will also forgive you, but if you do not forgive others their trespasses, neither will your Father forgive your trespasses.” Again, He’s speaking to believers, so He is not saying that one earns salvation by forgiving others or loses salvation by withholding forgiveness. But that the Father is not obliged to forgive just because we ask and may withhold it until the believer’s heart grows more forgiving.
• Regarding believers and forgiveness, Peter later asked Jesus how many times a disciple should forgive someone. Jesus effectively replied that they are to forgive them every time they repent (Matthew 18:21–22). This continued forgiveness reflects God’s continued willingness to forgive. He doesn’t have a limit as to how often He forgives a believer, and neither should we.

implications for today

We all carry a debt we could never repay: the debt of sin. Left on our own, we stand guilty before God, but Jesus stepped in and paid that debt in full through His death on the cross. If you've trusted in Him, your sin has been completely forgiven, your record has been erased (Colossians 2:13–14), and nothing can separate you from God's love (Romans 8:38–39).

But that doesn't mean you'll never sin again. Believers still struggle with sin (1 John 1:8–10), and while those sins don't keep us separated from God since we are His children, they do hinder our fellowship with Him. That's why Jesus taught His followers to regularly confess their sins and seek the Father's forgiveness—not to be saved again, but to walk closely with Him.

Forgiven people should be forgiving people. If God has shown you incredible mercy, He calls you to extend that same mercy to others (Ephesians 4:32). This doesn't mean ignoring sin or pretending it didn't happen, nor does it mean forgiving someone who refuses to repent. But when someone genuinely seeks forgiveness, followers of Christ should be quick to forgive, just as God has repeatedly forgiven them (Matthew 18:21–22).

Every time you pray, "forgive us our debts, as we forgive our debtors," you're asking God to shape your heart to look more like His. A life transformed by God's grace is marked not only by honest confession but also by generous forgiveness.