Forbidden Sexual Relations According to Torah
Not to indulge in familiarities with relatives, such as kissing, embracing, winking, skipping, which may lead to incest (Lev. 18:6) (CCN110).
Not to commit incest with one's mother (Lev. 18:7) (CCN112).
Not to commit sodomy with one's father (Lev. 18:7) (CCN111).
Not to commit incest with one's father's wife (Lev. 18:8) (CCN113). .
Not to commit incest with one's sister (Lev. 18:9) (CCN127).
Not to commit incest with one's father's wife's daughter (Lev. 18:11) (CCN128).
Not to commit incest with one's son's daughter (Lev. 18:10) (CCN119) (Note: CC treats this and the next as one commandment; however, Rambam treats them as two).
Not to commit incest with one's daughter's daughter (Lev. 18:10) (CCN119) (Note: CC treats this and the previous as one commandment; however, Rambam treats them as two).
Not to commit incest with one's daughter (this is not explicitly in the Torah but is inferred from other explicit commands that would include it) (CCN120).
Not to commit incest with one's fathers sister (Lev. 18:12) (CCN129).
Not to commit incest with one's mother's sister (Lev. 18:13) (CCN130).
Not to commit incest with one's father's brothers wife (Lev. 18:14) (CCN125).
Not to commit sodomy with one's father's brother (Lev. 18:14) (CCN114).
Not to commit incest with one's son's wife (Lev. 18:15) (CCN115). .
Not to commit incest with one's brother's wife (Lev. 18:16) (CCN126). .
Not to commit incest with one's wife's daughter (Lev. 18:17) (CCN121). .
Not to commit incest with the daughter of one's wife's son (Lev. 18:17) (CCN122).
Not to commit incest with the daughter of one's wife's daughter (Lev. 18:17) (CCN123).
Not to commit incest with one's wife's sister (Lev. 18:18) (CCN131).
Not to have intercourse with a woman, in her menstrual period (Lev. 18:19) (CCN132).
Not to have intercourse with another man's wife (Lev. 18:20) (CCN124).
Not to commit sodomy with a male (Lev. 18:22) (CCN116).
Not to have intercourse with a beast (Lev. 18:23) (CCN117).
That a woman shall not have intercourse with a beast (Lev. 18:23) (CCN118).
Not to castrate the male of any species; neither a man, nor a domestic or wild beast, nor a fowl (Lev. 22:24) (CCN143).
The Brit Chadasha/New Testament also deals with immorality. Read Romans 1, 1 Corinthians 5 just to name a few.
It is because people have rejected God's moral standards as found in His Torah/His Word from Genesis to Revelation that we have the moral decay we are seeing today.
