commit adultery

to fornicate

to commit adultery (usually of the female, and less often of simple fornication, rarely of involuntary ravishment); figuratively, to commit idolatry (the Jewish people being regarded as the spouse of Jehovah)

(cause to) commit fornication, [idiom] continually, [idiom] great, (be an, play the) harlot, (cause to be, play the) whore, (commit, fall to) whoredom, (cause to) go a-whoring, whorish.