Verses with the word adultery in the Old Testament (15 verses):

Exodus 20:14
Thou shalt not commit adultery.

Leviticus 20:10
And the man that committeth adultery with another man's wife, even he that committeth adultery with his neighbour's wife, the adulterer and the adulteress shall surely be put to death.

Deuteronomy 5:18
Neither shalt thou commit adultery.

Proverbs 6:32
But whoso committeth adultery with a woman lacketh understanding: he that doeth it destroyeth his own soul.

Jeremiah 3:8
And I saw, when for all the causes whereby backsliding Israel committed adultery I had put her away, and given her a bill of divorce; yet her treacherous sister Judah feared not, but went and played the harlot also.

Jeremiah 3:9
And it came to pass through the lightness of her whoredom, that she defiled the land, and committed adultery with stones and with stocks.

Jeremiah 5:7
How shall I pardon thee for this? thy children have forsaken me, and sworn by them that are no gods: when I had fed them to the full, they then committed adultery, and assembled themselves by troops in the harlots' houses.

Jeremiah 7:9
Will ye steal, murder, and commit adultery, and swear falsely, and burn incense unto Baal, and walk after other gods whom ye know not;

Jeremiah 23:14
I have seen also in the prophets of Jerusalem an horrible thing: they commit adultery, and walk in lies: they strengthen also the hands of evildoers, that none doth return from his wickedness; they are all of them unto me as Sodom, and the inhabitants thereof as Gomorrah.

Jeremiah 29:23
Because they have committed villany in Israel, and have committed adultery with their neighbours' wives, and have spoken lying words in my name, which I have not commanded them; even I know, and am a witness, saith the LORD.

Ezekiel 16:32
But as a wife that committeth adultery, which taketh strangers instead of her husband!

Ezekiel 23:37
That they have committed adultery, and blood is in their hands, and with their idols have they committed adultery, and have also caused their sons, whom they bare unto me, to pass for them through the fire, to devour them.

Hosea 4:2
By swearing, and lying, and killing, and stealing, and committing adultery, they break out, and blood toucheth blood.

Hosea 4:13
They sacrifice upon the tops of the mountains, and burn incense upon the hills, under oaks and poplars and elms, because the shadow thereof is good: therefore your daughters shall commit whoredom, and your spouses shall commit adultery.

Hosea 4:14
I will not punish your daughters when they commit whoredom, nor your spouses when they commit adultery: for themselves are separated with whores, and they sacrifice with harlots: therefore the people that doth not understand shall fall.