I believe we will always sin
1 John chapter 1 verse 8 If we claim to be without sin, we deceive ourselves and the truth is not in us.
Actually, 1 John 1:8 is a warning to the believers against the false gnostics who denied the existence of sin. Christian Scientists deny the existence of sin. So this verse would apply to them. Eternal Security proponents partially deny the existence of sin, too. They say they sin on a physical level but they do not sin on a spiritual level because their sins are all paid for: Past, present, and future. So this verse would be for them, as well (for they are saying they have "no sin" (spiritually). The New English Translation says this for 1 John 1:8,
"If we say we do not bear the guilt of sin, we are deceiving ourselves and the truth is not in us."
(1 John 1:8) (New English Translation).
In other words, 1 John 1:8 is a declaration of one saying that they have no sin if they do sin. For John tells us that we are not to sin, but if do sin, we have an advocate named Jesus Christ that we can go to (1 John 2:1) whereby if we confess our sins he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness (1 John 1:9).
Also, 1 John 2:4 refutes the Eternal Security Proponent's false thinking in regards to 1 John 1:8, as well.
How so?
Well, 1 John 2:3-4 says,
3 "And hereby we do know that we know him, if we keep his commandments.
4 He that saith, I know him, and keepeth not his commandments, is a liar, and the truth is not in him."
Did you catch that? Verse 4 says, he that says he knows him and keeps not his commandments is a liar and the truth is not in him. Is one keeping God's Commandments if they say they will always be breaking them? No. See, 1 John 1:8 and 1 John 2:4 are essentially saying the same thing. For 1 John 3:4 says, "sin is transgression of the Law." A Law is a Commandment. 1 John 1:8 says if we say we have no sin (i.e. We break God's Commandments) we lie and do not the truth. 1 John 2:4 says roughly the same thing. It says if we say we know Him and do not keep His Commandments (i.e. sin) we lie and do not the truth.
See, believers do not deny the existence of sin if they do happen to sin. For they follow John's instructions as per 1 John 1:9 in confessing their sins if they do happen to sin. However, the Eternal Security Proponent partially denies the existence of sin. Therefore, as a result, they are denying both 1 John 1:8 and 1 John 1:9. For the Eternal Security Proponent does not actually believe they are being forgiven of sin by confessing sin as per 1 John 1:9. They think 1 John 1:9 is just a forgiveness of sin on a physical level and it is talking about a break in fellowship (with them still being saved). But John's epistle makes no mention how one is saved even while being out of felllowship with God by breaking God's Commandments, though. For 1 John 2:4 refutes such an idea.
James chapter 2 verse 10 For whoever keeps the whole law and yet stumbles at just one point is guilty of breaking all of it.
James is talking about the "Law of Liberty" in the New Testament (See James 2:12) and not the Law of Moses or all Law (Which would include the Law of Moses). The "Law of Liberty" are the Commands or Laws given to us under the New Testament and not the Old Testament.
This is the way to repentance.
Repentance is the Sinner's Prayer which then leads to the fruits or deeds befitting of repentance.
A good example of Repentance is what Jesus said about it.
He said that the Ninevites will rise up in Judgment against this generation because they repented at the preaching of Jonah.
If you were to turn to Jonah chapter 3, you would see that they put on sack cloth and ashes (Which is common in confessing one's sins to God elsewhere in the Bible) which was then followed by the fruits of repentance by them turning from their evil and wicked ways.
Matthew chapter 21
For John came to you to show you the way of righteousness,27 and you did not believe him, but the tax collectors28 and the prostitutes29 did. And even after you saw this, you did not repent30 and believe him.
First, this is Matthew 21:32 and not Matthew 21:26, etc.
Second, lets read the context or the verses leading up to Matthew 21:32.
It says,
28 "But what think you? A certain man had two sons; and he came to the first, and said, Son, go work today in my vineyard.
29 He answered and said, I will not: but afterward he repented, and went.
30 And he came to the second, and said likewise. And he answered and said, I go, sir: and went not.
31 Which of the two did the will of his father? They said unto him, The first."
Here we see the one who did the Father's will is the one who repented and then obeyed God.
However, by what you said so far, you are giving me the impression that Jesus will save us despite them not doing the will of the Father.
Is that what you are saying?
Well, if that is the case, Jesus said elswhere in Scripture,
"Not every one that says unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that does the will of my Father who is in heaven."
(Matthew 7:21).
Did you catch that?
Jesus says not everyone who says unto Him, Lord, Lord will enter the Kingdom of Heaven, but he that does the will of the Father.
What is the will of the Father or the will of God?
The answer is "Sanctification."
"For this is the will of God, even your sanctification, ..." (1 Thessalonians 4:3) (King James).
"God's will is for you to be holy" (1 Thessalonians 4:3) (New Living Translation).
For it is written...
"Be ye holy; for I am holy" (1 Peter 1:16).
Scripture also says,
"Follow .... holiness, without which no man shall see the Lord." (Hebrews 12:14).
Luke chapter 3
10 “What should we do then?” the crowd asked.
11 John answered, “Anyone who has two shirts should share with the one who has none, and anyone who has food should do the same.”
12 Even tax collectors came to be baptized. “Teacher,” they asked, “what should we do?”
13 “Don’t collect any more than you are required to,” he told them.
14 Then some soldiers asked him, “And what should we do?”
He replied, “Don’t extort money and don’t accuse people falsely—be content with your pay.”
This was said in light of John's warning that if they did not bring forth fruit or deeds, they would be cast into to the fire (i.e. the Lake of Fire).
"And now also the ax is laid unto the root of the trees: every tree therefore which brings not forth good fruit is cut down, and cast into the fire." (Luke 3:9).
I believe the more we love the greater our reward, because everyone sins every pastor and every pope.
Well, there are no such things as popes in the Bible. Many of the teachings in the Catholic church are unbiblical, my friend. They pray to Mary and use her as a mediator when Christ Jesus is our one and only mediator between God and man (1 Timothy 2:5). They also bow down to idols and say that this is not idol worship - even when Daniels friends were willing to be put to death for not making it appear that they were bowing down with the rest of the others towards a statue made of their king. God's Word says we are not to even an appearance of any evil (1 Thessalonians 5:22).
Also, it is not true that everyone sins. This is not what the Bible teaches.
1 Peter 4:1 says they that have suffered in the flesh have CEASED (stopped) from sin.
Galatians 5:24 says they that are Christ's have CRUCIFIED the affections and lusts.
The 144,000 who will live on the Earth in the future will be found without fault before the Throne of God (Revelation 14:4-5).
This means, that if they can be without fault before God, then you can, too.
In fact, Jesus says, he that sins is a slave to sin (John 8:34).
Jesus told TWO people to: "Go and sin no more." (John 5:14) (John 8:11).
David said he hid His Word (i.e. God's Word) within his heart so that he may not sin against Him (
Psalm 119:11).
Paul says, "There has no temptation taken you but such as is common to man: but God is faithful, who will not allow you to be tempted above that you are able; but will with the temptation also make a way to escape, that you may be able to bear it." (1 Corinthians 10:13).
Paul says, "sin shall not have dominion over you." (Romans 6:14).
John says, "he that sins of the devil." (1 John 3:8).
John also says, "everyone that does evil hates the light. (John 3:20).
....
, but your post is spot on. 
