NET

4 For certain men have secretly slipped in among you—men who long ago were marked out for the condemnation I am about to describe—ungodly men who have turned the grace of our God into a license for evil and who deny our only Master and Lord, Jesus Christ.

Darby

4 For certain men have got in unnoticed, they who of old were marked out beforehand^D9421 to this sentence^D9422, ungodly [persons], turning the grace of our God into dissoluteness, and denying our only Master and Lord Jesus Christ^D9423.

Darby Bible Notes

beforehand - The article is used here with the perfect participle. The word signifies to appoint by notice beforehand, to fix by proclamation. They are the ones who of old were so noticed and marked out. sentence - Krima. not the act of condemnation, but the subject-matter on which they are condemned. see Note, 1Cor. 11.29. Christ - Or 'denying the only Master and our Lord Jesus Christ.' 'Master' is despotes. see Acts 4.24; 2Pet. 2.1.

KJV

4 For there are certain men crept in unawares, who were before of old ordained to this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying the only Lord God, and our Lord Jesus Christ.

Strong's

4 For ^G1063 there are certain^G5100 men^G444 crept in unawares^G3921, who^G3588 were before^G4270 of old^G3819 ordained^G4270 to^G1519 this^G5124 condemnation^G2917, ungodly men^G765, turning^G3346 the grace^G5485 of our^G2257 God^G2316 into^G1519 lasciviousness^G766, and^G2532 denying^G720 the only^G3441 Lord^G1203 God^G2316, and^G2532 our^G2257 Lord^G2962 Jesus^G2424 Christ^G5547.