of the law” can be “fulfilled” in the believer who walks “in relation to the Spirit” (see 8:4 and discussion there). Strikingly, this is Paul’s first use in Romans of the Greek word for “son” (huios) other than in reference to Jesus Christ (as in 1:3, 4, 9; 5:10; 8:3). This statement does not simply mean that those led by the Spirit are Christians. Neither is Paul’s point to be related to some supposed proof of one’s eternal salvation. In Paul’s much earlier epistle to the Galatians, he clearly distinguished
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