 James 4:4-5  You adulteresses, do you not know that friendship with the world is hostility toward God? Therefore whoever wishes to be a friend of the world makes himself an enemy of God. Or do you think that the Scripture speaks to no purpose: "He jealously desires the Spirit which He has made to dwell in us"?  1 John 5:21  Little children, guard yourselves from idols.  Revelation 2:14  `But I have a few things against you, because you have there some who hold the teaching of Balaam, who kept teaching Balak to put a stumbling block before the sons of Israel, to eat things sacrificed to idols and to commit acts of immorality.  “For I am jealous over you with godly jealousy (refers to the ‘jealousy of God’ [Ex. 20:5; 34:14; Nah. 1:2]): for I have espoused you to one husband that I may present you as a chaste virgin to Christ. (They must not commit ‘spiritual adultery,’ which refers to trusting in things other than Christ and the Cross.)”  Deuteronomy 12:30-31  30 Take heed to thyself that thou be not snared by following them, after that they be destroyed from before thee; and that thou enquire not after their gods, saying, How did these nations serve their gods? even so will I do likewise.  31 Thou shalt not do so unto the L ORD thy God: for every abomination to the L ORD, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods.

What other Idols can we commit adulty with

 Jeremiah 10:1-6King James Version (KJV)  10 Hear ye the word which the L ORD speaketh unto you, O house of Israel:  2 Thus saith the L ORD, Learn not the way of the heathen, and be not dismayed at the signs of heaven; for the heathen are dismayed at them.  3 For the customs of the people are vain: for one cutteth a tree out of the forest, the work of the hands of the workman, with the axe.  4 They deck it with silver and with gold; they fasten it with nails and with hammers, that it move not.

 In ancient Babylon, the goddess figure Semiramus was the mother of the Sumerian deity Tammuz.

 Other surrounding cultures have differing names for Tammuz. He is Attis to the Phoenicians, and Adonis to the Greeks, etc. In each legend, he dies young and his birth and death are honored on his birthday which coincided with the Winter Solstice. This was celebrated on December 25th. Part of the religious ritual involved cutting down a young green evergreen tree (which kills the tree) as a way of commemorating the premature death of Tammuz.  This tree is then decorated in the fashion Jeremiah described. A corollary to the Tammuz tree was the rite in which the women cried for the dead god. Shortly after Jeremiah's time, we find the idolatry has penetrated the Jewish temple where we see Sun worship and "women weeping for Tammuz." (Ezekiel 16:14) The sun worship is closely related to the end of the Winter Solstice when the sun begins to stay in the sky longer.

 Lets look at this video

 The druids – that is what they call their magicians – hold nothing more sacred than the mistletoe and a tree on which it is growing, provided it is Valonia Oak.... Mistletoe is rare and when found it is gathered with great ceremony, and particularly on thesixth day of the moon....Hailing the moon in a native word that means 'healing all things,' they prepare a ritual sacrifice and banquet beneath a tree and bring up two white bulls, whose horns are bound for the first time on this occasion. A priest arrayed in white vestments climbs the tree and, with a golden sickle, cuts down the mistletoe, which is caught in a white cloak. Then finally they kill the victims, praying to a god to render his gift propitious to those on whom he has bestowed it. They believe that mistletoe given in drink will impart fertility to any animal that is barren and that it is an antidote to all poisonsValonia Oaksixth day of the moon

 Revelation 18 King James Version (KJV)  18 And after these things I saw another angel come down from heaven, having great power; and the earth was lightened with his glory.  2 And he cried mightily with a strong voice, saying, Babylon the great is fallen, is fallen, and is become the habitation of devils, and the hold of every foul spirit, and a cage of every unclean and hateful bird.  3 For all nations have drunk of the wine of the wrath of her fornication, and the kings of the earth have committed fornication with her, and the merchants of the earth are waxed rich through the abundance of her delicacies.  4 And I heard another voice from heaven, saying, Come out of her, my people, that ye be not partakers of her sins, and that ye receive not of her plagues.  5 For her sins have reached unto heaven, and God hath remembered her iniquities.  6 Reward her even as she rewarded you, and double unto her double according to her works: in the cup which she hath filled fill to her double.  7 How much she hath glorified herself, and lived deliciously, so much torment and sorrow give her: for she saith in her heart, I sit a queen, and am no widow, and shall see no sorrow.  8 Therefore shall her plagues come in one day, death, and mourning, and famine; and she shall be utterly burned with fire: for strong is the Lord God who judgeth her.  9 And the kings of the earth, who have committed fornication and lived deliciously with her, shall bewail her, and lament for her, when they shall see the smoke of her burning,  10 Standing afar off for the fear of her torment, saying, Alas, alas that great city Babylon, that mighty city! for in one hour is thy judgment come.  11 And the merchants of the earth shall weep and mourn over her; for no man buyeth their merchandise any more:  12 The merchandise of gold, and silver, and precious stones, and of pearls, and fine linen, and purple, and silk, and scarlet, and all thyine wood, and all manner vessels of ivory, and all manner vessels of most precious wood, and of brass, and iron, and marble,  13 And cinnamon, and odours, and ointments, and frankincense, and wine, and oil, and fine flour, and wheat, and beasts, and sheep, and horses, and chariots, and slaves, and souls of men.  14 And the fruits that thy soul lusted after are departed from thee, and all things which were dainty and goodly are departed from thee, and thou shalt find them no more at all.  15 The merchants of these things, which were made rich by her, shall stand afar off for the fear of her torment, weeping and wailing,