1 sn Milk refers figuratively to basic or elementary Christian teaching. Paul’s point was that the Corinthian believers he was writing to here were not mature enough to receive more advanced teaching. This was not a problem at the time, when they were recent converts, but the problem now is that they are still not ready.
2 tn Or “are still merely human”; Grk “fleshly.” Cf. BDAG 914 s.v. σαρκικός 2, “pert. to being human at a disappointing level of behavior or characteristics, (merely) human.” The same phrase occurs again later in this verse.
3 tn Grk “and walking in accordance with man,” i.e., living like (fallen) humanity without the Spirit’s influence; hence, “unregenerate people.”