Fore there is no good tree which produces bad fruit, nor on the otherhand, a bad tree which produces good fruit — Luke 6:43
Why do you call me “Lord, Lord,” and do not do what I say? — Luke 6:46 NASB
Salvation does not come from works but from faith alone (Romans 3:28.) But from faith comes good works (James.) The way you identify good trees is from their fruit. But the fruit depends on the tree, not the tree on the fruit, therefore the works come from the faith, not the faith from works. If we say “Jesus is Lord,” and then go against God’s will, we are showing a basic misunderstanding of the word “Lord.” The Centurion in Luke 7 understands the meaning of “Lord,” he says “go” and the man goes.
So, how do I respond? Often I act contrary to God’s will. Taken with Luke 6:43 “There is no good tree which produces bad fruit…” my contrary acts seem to damn me. So I pray the prayer of the man in Mark 9:24 “I do believe, help me overcome my disbelief.”
Faith yields good works (aka: doing God’s will) and a lack of faith yields sin (aka: not doing God’s will.) The actions are evidence of the Faith, and are completely dependent thereon. What do I do now? I want to have all faith and constantly act in God’s will. But when I sin, I am not acting according to God’s will. God has set me free from sin (Romans 6:22) but I still sin. Repentance in Christ’s name yields the forgiveness of sins (Luke 26:47)
The only way to be a good tree is to have your sins washed away by christ. For then we truly are the good tree which produces no bad fruit. This is why Christ is necessary, if we could slowly root out sin until we were perfect, then Christ would not be needed to reunite our will with God’s will.
Therefore salvation comes from faith alone. Faith yields good works, but good works are not related to salvation.