We can submit to God but it doesn't guarantee we will not sin again. You asserted "so all of you are saying that we don't even need to submit to God", but I'm not sure who has said that.
Where we agree is that when we have Christ living within us (accepting Him as our Savior), we naturally want to be obedient to His commandments. I agree that works and good deeds can be evidence of a life turned over to Christ, but they are as "filthy rags" (Isaiah 64:6). We will continue to fall short. Looking at works to justify Christianhood is antithetical to biblical teachings. I'm not implying we SHOULDN'T live biblical standards though. That isn't the same thing.
“We can submit to God but it doesn't guarantee we will not sin again.
“
If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.
If we say that we have not sinned, we make him a liar, and
his word is not in us.”
1 John 1:9-10 KJV
“And
when ye stand praying, forgive, if ye have ought against any: that your Father also which is in heaven may forgive you your trespasses.
But
if ye do not forgive, neither will your Father which is in heaven forgive your trespasses.”
Mark 11:25-26 KJV
“
Be ye therefore merciful, as your Father also is merciful.
Judge not, and ye shall not be judged:
condemn not, and ye shall not be condemned:
forgive, and ye shall be forgiven: give, and it shall be given unto you; good measure, pressed down, and shaken together, and running over, shall be given into your bosom. For
with the same measure that ye mete withal it shall be measured to you again.”
Luke 6:36-38
“For
he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment.”
James 2:13 KJ
“And he commanded us to preach unto the people, and to
testify that it is he which was ordained of God to be the Judge of quick and dead.
To him give all the prophets witness, that
through his name whosoever believeth in him shall receive remission of sins.”
Acts 10:42-43
“For to this end
Christ both died, and rose, and revived, that he might be Lord both of the dead and living. But why dost thou judge thy brother? or why dost thou set at nought thy brother? for
we shall all stand before the judgment seat of Christ. For it is written, As I live, saith the Lord, every knee shall bow to me, And every tongue shall confess to God. So then
every one of us shall give account of himself to God.”
Romans 14:9-12
We can confess now in Christ when we realize we have sinned but we can’t use Christ as an excuse to keep on sinning neglecting Godly sorrow into repentance . In Christ when we sin and know it it should make us sorrowful so we will stop. If we look at Jesus death as the reason we don’t need to change we’ve got the wrong idea ….it’s the reason we can change.
Paul wrote a scathing letter then later a second explaining this why it was so harsh
“For
godly sorrow worketh repentance to salvation not to be repented of: but the sorrow of the world worketh death.
For behold this selfsame thing, that
ye sorrowed after a godly sort, what carefulness it wrought in you, yea, what clearing of yourselves, yea,
what indignation, yea, what fear, yea, what vehement desire, yea,
what zeal, yea, what revenge!
In all things ye have approved yourselves to be clear in this matter.”
2 Corinthians 7:10-11 KJV
after the first letter harshly reprimanding them for the open sin among the church he’s now written a letter to comfort them and explain his heartfelt decision to write the first letter regarding the sinner they had been proud of and celebrating openly .
Teaching them about sin and repentance in the church 
