'Work' in the Bible

They show that the work of the law is written in their hearts, as their conscience bears witness and their conflicting thoughts accuse or else defend them,

But to the one who does not work, but believes in the one who declares the ungodly righteous, his faith is credited as righteousness.

And we know that all things work together for good for those who love God, who are called according to his purpose,

Do not destroy the work of God for the sake of food. For although all things are clean, it is wrong to cause anyone to stumble by what you eat.