How do I know the Bible is true? There are three things that point to the truthfulness of Scripture: the testimony of Scripture itself, its unity, and the fulfillment of prophecy. Let the article explain these.
Was Jesus capable of sin? Jesus was tempted just like us, he possessed the human nature, but he did not have the motive to sin. So was Jesus capable of sinning? The article discusses.
This article shows that legalism is a problem that confronts both justification and sanctification, and needs to be addressed in a balanced way.