James describes the attitude and actions of those who will humble themselves before God. He says God will exalt or reward those who humble themselves (James 8b-10).
In a spiritual sense, James is telling them to “cleanse your hands … purify your hearts.” He is talking to “sinners and double-minded” people. “Sinners” are those who are “devoted to sin.” They are “pre-eminently sinful,” living a lifestyle that is contrary to how God wants them to live.