en_tn_lite_do_not_use/jas/01/08.md

is a double-minded man, unstable

The word "double-minded" refers to a person's thoughts when he is unable to make a decision. Alternate translation: "cannot decide if he will follow Jesus or not and is unstable" (See: rc://en/ta/man/jit/figs-metaphor)

unstable in all his ways

Here this person is spoken of as if he cannot stay on one path but instead goes from one to another. (See: rc://en/ta/man/jit/figs-metaphor)