1 John 1:7 says Jesus walks in the light, and we are to walk in the light. What is this light? Letting the Bible speak for itself, we find that the light is the law and the Word of God. Proverbs 6:23 , Psalm 119:105.
Actually, 1John 1:7. does
not say Jesus is "walking" in the light. Instead it says that Jesus is
"in" the light.
And note John 8:12
Then Jesus spoke to them again, saying, “I am the light of the world. He who follows Me shall not walk in darkness, but have the light of life.”
Here we see Jesus
is the light. Those who believe on Jesus do not "walk" in darkness, but have the light of life (Jesus Christ).
As for your reference to the law being the light, you misunderstand those scriptures.
It was Jesus who delighted in the law of the Lord kept the law perfectly.
Ps 1:1,2
Blessed is the man that walketh not in the counsel of the ungodly, nor standeth in the way of sinners, nor sitteth in the seat of the scornful.
But his delight is in the law of the Lord; and in his law doth he meditate day and night.
Note Rom 7:22. .
For I delight in the law of God according to the inward man.
A Christian's inner man is Christ. And it's Christ's righteousness, holiness, perfection that believers benefit from.
But, if someone mixes works of the law with grace, then they are denying grace. They are rejecting Christ's sacrifice. They are rejecting the need for his righteousness, holiness, perfection.
You simply
cannot mix grace with works of the law.
Rom 11:2
And if by grace, then it is no longer of works; otherwise grace is no longer grace. But if it is of works, it is no longer grace; otherwise work is no longer work.
The thief on the cross story that is propagated in Christianity is an unsupported myth. Supposedly the thief had a conversion experience on the cross, no works required..
Legalists always ignore that our works are to believe on Jesus, John 6:29.
I can only imagine this is because they are in rebellion against God's will that we believe on Jesus, John 6:40.
The thief on the cross did the works of believing on Jesus and was saved, and that without any deeds of the law.
Scripture doesn't say when and where the thief was saved. He could have been saved before hand - his words about Christ being innocent indicates that the thief already knew something about Christ. The thief also knew Christ's teaching about Christ coming in his kingdom for the millennial reign of Christ. Maybe he was already a disciple of Christ before being crucified. Maybe he had already undergone water baptism , changed his life around and followed Christ, you don't know that. Maybe the thief was already living righteously before God, before being crucified, but still had to pay for his crime on a cross.
You cannot say that the thief was saved by faith alone and not by works.
As for being saved without works - the thief didn't merely believe in Christ or pray the sinners prayer... he did something.. he said some kind words to Christ, and rebuked the others . If anything it is because of these words that Christ forgave him.
Christ forgave the thief on the cross because of his righteous words. The thief didn't say "Lord I believe in you", neither did He say "You are the Son of God", neither did he say "forgive me Lord and save me" or "have mercy on me, a sinner". The thief only rebuked the other thieves, and asked Christ to remember Him in his kingdom. These are not the words of a man who had a conversion experience on the cross, but the words of a man who was already saved and a follower of Christ before going to the cross.
No doubt both thieves had heard the gospel beforehand. Note how the thief that mocked Jesus even said
"If you are the Christ....."
Remember that one plants a seed, another waters it, and God provides the increase.
So it is with the gospel. One plants the seed of the gospel of grace and it could be quite some time later before they are ready to receive Christ.
But your assumption that the thief might have perfectly obeyed the law is unfounded and is merely an effort to continue preaching works of the law regardless that it contradicts scripture.
BTW, that thief admitted he was deserving of his punishment. He also called Jesus
"Lord" and asked to be remembered in
"thy kingdom". Clearly he was believing the gospel.
To be saved by grace means to believe that Jesus rose from the dead - the thief had no such opportunity, the thief was dead before Christ rose 3 days later.
To be saved by grace means to be born again by the Spirit - the thief did not receive the Spirit, because the thief died before Christ was resurrected and sent the Spirit.
The thief on the cross is actually not an example of instant Christian conversion, but an example of Christ's particular mercy and forgiveness to a man who showed him love.
As also with the woman who poured perfume on Christ's feet in Luke 7. Christ forgave this woman because of her act of love, and Christ forgave the thief on the cross because of his righteous words, which was also an act of love.
The thief on the cross (as well as the woman's act of love) proves that Christ takes our righteous words and deeds into account, and it is not based on faith alone.
1John 5:1-5
Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.
And note 1John 5:5
Who is he that overcometh the world, but he that believeth that Jesus is the Son of God?
That thief on the cross overcame the world.
How?
he believed on Jesus, which are the works that we are asked to do, John 6:29.
I get the impression from what you have be preaching here that you think anybody with death bed salvation is lost because they never kept the law perfectly.