"AS WE FORGIVE": IT'S UP TO US!
There is a condition in verse 12 that is vitally relevant for everyday Kingdom living. Ignoring it builds an impenetrable wall (and more) between an unforgiving Believer and the Father.
And it centres around the two two-letter words:
"forgive us our debts (sins, trespasses)
forgive our debtors" (those who sin, trespasses, against us).
To conclude, at the end of verses 9-13 the Lord says, "Amen". It means a very definite "so be it".
Immediately, He goes on to clarify the condition:
"... if you forgive men their trespasses, your heavenly Father will also forgive you.
But if you do not forgive men their trespasses, neither will your Father forgive your trespasses" (verses 14-15).
Obviously, the Lord is emphasising how crucial forgiveness is as part of a Believer's manner. Fulfilling His condition clears the way to receiving from the Father.
Going to God for forgiveness from Him is not an uncommon thing. However, one thing has to come first. Believers are to examine ourselves to ensure that we have forgiven.
Saints are told to do just this at the Lord's Supper:
"... let a man examine himself, and so let him eat of the bread and drink of the cup.
For he who eats and drinks unworthily eats and drinks judgment to himself, not discerning the Lord’s body.
For this reason many are weak and sick among you, and many sleep.
For if we would judge ourselves, we would not be judged.
But when we are judged, we are chastened by the Lord, that we may not be condemned with the world," 1 Corinthians 11'28-32.
We have the privilege and the blessing of judging ourselves and so avoiding the consequences of partaking of God's Supper unworthily.
There are many reasons why Believers need to examine themselves. But forgiving someone, especially someone who is close, can be the most challenging.
It can seem an especially unreasonable thing to be required to do because of the harm that a person, or persons, has inflicted.
But by putting this condition in place, the Lord is showing that He knows the serious personal, spiritual consequences of unforgiveness.
So, why would any Believer, having been totally forgiven and unconditionally loved by God, put a blockage in the way by not forgiving someone?
Don't we realise that turning away means that God can't hear us because our "manner" has become unacceptable? Remember -
Be ... forgiving ... just as God in Christ forgave you.