I gave you the expository on what you called 'simple.' Pulling these verses out and using such to suggest that Christ in His capacity gave the authority of God to forgive all sins to His disciples would make the cross and empty tomb irrelevant.
You did not consider what I posted about mankind's relationship to God and to fellow man. The Greatest Commandment.
The next step would be to see how the NT church applied the forgiveness of sins. Look at the relationships involved and what the commissioned work of the apostles and disciples consisted of:
Ephesians 4:32
Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you.
Matthew 6:14-15
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.
Luke 6:37
“Judge not, and you will not be judged; condemn not, and you will not be condemned; forgive, and you will be forgiven;
Colossians 3:13
Bearing with one another and, if one has a complaint against another, forgiving each other; as the Lord has forgiven you, so you also must forgive.
Matthew 18:21-22
Then Peter came up and said to him, “Lord, how often will my brother sin against me, and I forgive him? As many as seven times?” Jesus said to him, “I do not say to you seven times, but seventy times seven.
Mark 11:25
And whenever you stand praying, forgive, if you have anything against anyone, so that your Father also who is in heaven may forgive you your trespasses.”
Luke 17:3-4
Pay attention to yourselves! If your brother sins, rebuke him, and if he repents, forgive him, and if he sins against you seven times in the day, and turns to you seven times, saying, ‘I repent,’ you must forgive him.”
1 Peter 3:9
Do not repay evil for evil or reviling for reviling, but on the contrary, bless, for to this you were called, that you may obtain a blessing.
Matthew 5:44
But I say to you, Love your enemies and pray for those who persecute you,
1 John 1:9
If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.
Matthew 6:14
For if you forgive others their trespasses, your heavenly Father will also forgive you,
James 5:16
Therefore, confess your sins to one another and pray for one another, that you may be healed. The prayer of a righteous person has great power as it is working.
1 Peter 3:7
Likewise, husbands, live with your wives in an understanding way, showing honor to the woman as the weaker vessel, since they are heirs with you of the grace of life, so that your prayers may not be hindered.
Matthew 18:35
So also my heavenly Father will do to every one of you, if you do not forgive your brother from your heart.”
Luke 23:34
And Jesus said, “Father, forgive them, for they know not what they do.” And they cast lots to divide his garments.
Romans 5:10
For if while we were enemies we were reconciled to God by the death of his Son, much more, now that we are reconciled, shall we be saved by his life.
Hebrews 12:1-2
Therefore, since we are surrounded by so great a cloud of witnesses, let us also lay aside every weight, and sin which clings so closely, and let us run with endurance the race that is set before us, looking to Jesus, the founder and perfecter of our faith, who for the joy that was set before him endured the cross, despising the shame, and is seated at the right hand of the throne of God.