Richard,
First, sorry this is [i]so[/i] long, but it has a feeling of completeness to me, from the Spirit, so I've not tried to reduce it.
It sounds as if you are grappling with these issues at an appropriately primitive level. This is where God can meet you for sure.
You said:
Every time that sin lays hold on me, I feel sick inside. I long to be loosened from the grip of sin altogether, not just getting rid of those sins that keep on coming back time and again.
Many of the answers you might find helpful, are in key verses in Romans and Ephesians. You can't leave any other relevant scripture out, though.
Essentially, the battle with sin is a battle with, or conflict of, [i]worship systems[/i]. I base this statement on Lev 18:1 - 4 and
Romans 1
20 For since the creation of the world His invisible [attributes] are clearly seen, being understood by the things that are made, [even] His eternal power and Godhead, so that they are without excuse,
21 because, although they knew God, they did not glorify [Him] as God, nor were thankful, but became futile in their thoughts, and their foolish hearts were darkened.
22 Professing to be wise, they became fools,
23 and changed the glory of the incorruptible God into an image made like corruptible man -- and birds and four-footed animals and creeping things.
24 Therefore God also gave them up to uncleanness, in the lusts of their hearts, to dishonor their bodies among themselves,
25 [b]who exchanged [u]the truth[/u] of God for [u]the lie[/u], and worshiped and served [u]the creature[/u] rather than the Creator[/b], who is blessed forever. Amen.
Romans 5
1 Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ,
2 [b]through whom also we have access by faith[/b] [u]into this grace in which [b]we stand[/b][/u],
Richard, please make sure you know on what is based the 'therefore' in v 1 above.
Ephesians 6
11 Put on the whole armor of God, [b]that you may be able to stand[/b] against the wiles of the devil.
12 For we do not wrestle against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this age, against spiritual [hosts] of wickedness in the heavenly [places.]
13 Therefore take up the whole armor of God, [b]that you may be able to withstand[/b] in the evil day, and [b]having done all, to stand[/b].
14 [b]Stand therefore, having[/b] girded your waist with truth, having put on the breastplate of righteousness,
15 [b]and having[/b] shod your feet with the preparation of the gospel of peace;
16 [b]above all, taking the shield of faith[/b] with which you will be able to quench all the fiery darts of the wicked one.
17 [b]And take the helmet of salvation, and the sword of the Spirit[/b], which is the word of God;
18 [b]praying always with all prayer and supplication in the Spirit, being watchful to this end with all perseverance and supplication for all the saints[/b] --
Ephesians 4 (KJV)
13 Till we all come in the unity of [b]the faith, and of the knowledge of the Son of God[/b], unto a perfect man, unto the measure of the stature of the fulness of Christ:
14 That we [henceforth] be [b]no more[/b] children, tossed to and fro, and [b]carried about with every wind of doctrine[/b], by the sleight of men, [and] cunning craftiness, [b]whereby they lie - in wait to deceive[/b] -
Romans 6 (Young's Literal)
1 What, then, shall we say? shall we continue in the sin that the [b]grace[/b] may abound?
2 let it not be! we who died to the sin--how shall we still live in it?
3 are ye ignorant that we, as many as were baptized to Christ Jesus, to his death were baptized?
4 we were buried together, then, with him through the baptism to the death, that even as Christ was raised up out of the dead through the glory of the Father, so also we in newness of life might walk.
5 For, [b]if[/b] we have become planted together to the likeness of his death, [so] also we shall be of the rising again;
6 this knowing, that our old man was crucified with [him], that the body of the sin may be made useless, for our no longer serving the sin;
7 for he who hath died hath been set free from the sin.
Richard, Tyndale chose the word 'grafted' for 'planted' in v 5 above. I think this gives a better picture of our contiguity with Christ in His death, which also reminds of our contiguity with Him in the Vine. (John 15:1 - 3. Notice the roles of the members of the Godhead, in those verses.)
Understand the 'if' in Rom 6:5, also, and that [i]if[/i] you are in the Vine, you should be experiencing a degree of fruitfulness of the fruit of the Spirit (Gal 5), even if you are also battling with temptation.
Take heart from (Young) 1 Peter 4
1 Christ, then, having suffered for us in the flesh, ye also with the same mind arm yourselves, because he who did suffer in the flesh hath done with sin,
2 no more in the desires of men, but in the will of God, to live the rest of the time in the flesh;
1 Peter 2 (Young)
24 who our sins himself did bear in his body, upon the tree, that to the sins having died, to the righteousness we may live; by whose stripes ye were healed,
25 for ye were as sheep going astray, but ye turned back now to the shepherd and overseer of your souls.
One last text for you.
Hebrews 12
1 Therefore, we also having so great a cloud of witnesses set around us, every weight having put off, and the closely besetting sin, through endurance may we run the contest that is set before us,
2 looking to the author and perfecter of faith--Jesus, who, over-against the joy set before him--did endure a cross, shame having despised, on the right hand also of the throne of God did sit down;
3 for consider again him who endured such gainsaying from the sinners to himself, that ye may not be wearied in your souls--being faint.
4 Not yet unto blood did ye resist--with the sin striving;
5 and ye have forgotten the exhortation that doth speak fully with you as with sons, `My son, be not despising chastening of the Lord, nor be faint, being reproved by Him,
6 for whom the Lord doth love He doth chasten, and He scourgeth every son whom He receiveth;'
In the context of Hebrews, the besetting sin is unbelief (ch 3 + 4).
Amen, brother. Cleave unto Him, and it will be harder to sin - if at all.