Yes, I admit it's changing gears, but not really blatantly. Jesus several times forgave without explicit repentance, or in the face of unrepentance. If repentance were so vital, why did the New Testament writers leave it out?
If your standard is that if it is to be true it must always be revealed in an explicit way then I cannot help you. However your last statement is completely untrue:
Mat_3:2 “Repent, for the kingdom of heaven is at hand.”
Mat_4:17 From that time Jesus began to preach, saying, “Repent, for the kingdom of heaven is at hand.”
Mat_11:20 Then he began to denounce the cities where most of his mighty works had been done, because they did not repent.
Mar_1:15 and saying, “The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel.”
Mar_6:12 So they went out and proclaimed that people should repent.
Luk_13:3 No, I tell you; but unless you repent, you will all likewise perish.
Luk_13:5 No, I tell you; but unless you repent, you will all likewise perish.”
Luk_16:30 And he said, ‘No, father Abraham, but if someone goes to them from the dead, they will repent.’
Luk_17:4 and if he sins against you seven times in the day, and turns to you seven times, saying, ‘I repent,’ you must forgive him.”
Act_2:38 And Peter said to them, “Repent and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit.
Act_3:19 Repent therefore, and turn back, that your sins may be blotted out,
Act_8:22 Repent, therefore, of this wickedness of yours, and pray to the Lord that, if possible, the intent of your heart may be forgiven you.
Act_17:30 The times of ignorance God overlooked, but now he commands all people everywhere to repent,
Act_26:20 but declared first to those in Damascus, then in Jerusalem and throughout all the region of Judea, and also to the Gentiles, that they should repent and turn to God, performing deeds in keeping with their repentance.
So. Please list all the verses that say we should forgive all those who have wronged us only if they repent and then a list of all the verses that do not specify repentance.
What you need to do is to look to God's character in how He deals with us in order to fully understand that.
Forgiveness is for our benefit;
Scripture please
It frees us from the chains of bitterness that would otherwise beset us if we were to keep a running total of all the wrong things that have been done to us.
You are conflating two issues that being 1.) unforgiveness, and 2.) bitterness, one is not the other and the other is not necessary.
If we are to be forgiven, we must forgive. I read that somewhere.
We cannot be forgiven without repentance.