As I stated in my previous response to your question regarding my church's ability to forgive sins, I said no, it cannot. You state above that Jesus's Church can. Provide scripture to support your position.
The purpose of the local body of believers, the ekklesia, is to build-up the body and observe the ordinances - baptism, the Lord's supper.
What is the purpose of the church? | GotQuestions.org
Question: "What is the purpose of the church?"
"Answer: Acts 2:42 could be considered a purpose statement for the church: “They devoted themselves to the apostles' teaching and to the fellowship, to the breaking of bread and to prayer.” According to this verse, the purposes/activities of the church should be 1) teaching biblical doctrine, 2) providing a place of fellowship for believers, 3) observing the Lord’s supper, and 4) praying.
The church is to teach biblical doctrine so we can be grounded in our faith. Ephesians 4:14 tells us, “Then we will no longer be infants, tossed back and forth by the waves, and blown here and there by every wind of teaching and by the cunning and craftiness of men in their deceitful scheming.” The church is to be a place of fellowship, where Christians can be devoted to one another and honor one another (Romans 12:10), instruct one another (Romans 15:14), be kind and compassionate to one another (Ephesians 4:32), encourage one another (1 Thessalonians 5:11), and most importantly, love one another (1 John 3:11)..."
No where does scripture teach that the local assembly can forgive sins.
John 20
22And when He had said this, He breathed on them and *said to them, “Receive the Holy Spirit. 23If you forgive the sins of any, their sins [d]have been forgiven them; if you retain the sins of any, they have been retained.”
Matthew 18
15Moreover if thy brother shall trespass against thee, go and tell him his fault between thee and him alone: if he shall hear thee, thou hast gained thy brother. 16But if he will not hear thee, then take with thee one or two more, that in the mouth of two or three witnesses every word may be established. 17And if he shall neglect to hear them, tell it unto the church: but if he neglect to hear the church, let him be unto thee as an heathen man and a publican. 18Verily I say unto you, Whatsoever ye shall bind on earth shall be bound in heaven: and whatsoever ye shall loose on earth shall be loosed in heaven.
19Again I say unto you, That if two of you shall agree on earth as touching any thing that they shall ask, it shall be done for them of my Father which is in heaven. 20For where two or three are gathered together in my name, there am I in the midst of them
The church is one body with Jesus Christ
Ephesians 5
28In this same way, husbands ought to love their wives as their own bodies. He who loves his wife loves himself. 29After all, no one ever hated their own body, but they feed and care for their body, just as Christ does the church— 30for we are members of his body.
2 Corinthians 2
10To whom ye forgive any thing, I forgive also: for if I forgave any thing, to whom I forgave it, for your sakes forgave I it in the person of Christ; 11Lest Satan should get an advantage of us: for we are not ignorant of his devices.
Here is Paul forgiving sin in the person of Christ (what priests do).