φευγετε 5343 5720 V-PAM-2P την 3588 T-ASF πορνειαν 4202 N-ASF παν 3956 A-NSN αμαρτημα 265 N-NSN ο 3739 R-ASN εαν 1437 COND ποιηση 4160 5661 V-AAS-3S ανθρωπος 444 N-NSM εκτος 1622 ADV του 3588 T-GSN σωματος 4983 N-GSN εστιν 2076 5748 V-PXI-3S ο 3588 T-NSM δε 1161 CONJ πορνευων 4203 5723 V-PAP-NSM εις 1519 PREP το 3588 T-ASN ιδιον 2398 A-ASN σωμα 4983 N-ASN αμαρτανει 264 5719 V-PAI-3S
Vincent's NT Word Studies
18. Flee. See Gen. xxxix. 12. Socrates, in Plato's "Republic," relates how the poet Sophocles, in answer to the question "How does love suit with are?" replied: "Most gladly have I escaped that, and I feel as if I had escaped from a mad and furious master" (329).Sin (amarthma). See on Rom. iii. 25.
Without the body (ektov tou swmatov). Lit., outside. The body is not the instrument, but the subject. But in fornication the body is the instrument of the sin, and "inwardly as well as outwardly is made over to another."
Robertson's NT Word Studies
6:18 {Flee} (feugete). Present imperative. Have the habit of fleeing without delay or parley. Note abruptness of the asyndeton with no connectives. Fornication violates Christ's rights in our bodies (verses #13-17) and also ruins the body itself. {Without the body} (ektos tou swmatos). Even gluttony and drunkenness and the use of dope are sins wrought on the body, not "within the body" (entos tou swmatos) in the same sense as fornication. Perhaps the dominant idea of Paul is that fornication, as already shown, breaks the mystic bond between the body and Christ and hence the fornicator (ho porneuwn) {sins against his own body} (eis to idion swma hamartanei) in a sense not true of other dreadful sins. The fornicator takes his body which belongs to Christ and unites it with a harlot. In fornication the body is the instrument of sin and becomes the subject of the damage wrought. In another sense fornication brings on one's own body the two most terrible bodily diseases that are still incurable (gonorrhea and syphilis) that curse one's own body and transmit the curse to the third and fourth generation. Apart from the high view given here by Paul of the relation of the body to the Lord no possible father or mother has the right to lay the hand of such terrible diseases and disaster on their children and children's children. The moral and physical rottenness wrought by immorality defy one's imagination.