What is the faith of the thief on the cross written in Luke 23:42-43

Isaiah 64:6 But we are all as an unclean thing, and all our righteousnesses are as filthy rags; and we all do fade as a leaf; and our iniquities, like the wind, have taken us away.

• That above verse are those that do their own righteousness

Romans 10:3 For they being ignorant of God's righteousness, and going about to establish their own righteousness, have not submitted themselves unto the righteousness of God

• There are two righteousness in the Bible which are God's own and man's own, those that submit themselves to God are those that do God's righteousness while those that people don't do God's righteousness are fruitless. They become unprofitable

Romans 3:10-12 As it is written, There is none righteous, no, not one:
There is none that understandeth, there is none that seeketh after God.
They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one

• If you are doing God's righteousness, you won't be like filthy rag as of those that don't do God's righteousness