No'efot (adulterers)! Do you not have da'as that to have shaichus (closeness, friendship, intimacy) with the Olam Hazeh is eyvah im Hashem (enmity with G-d)? Therefore, whoever chooses to make the Olam Hazeh his Oihev is made an Oyev (Enemy) of Hashem. [YESHAYAH 54:4; YIRMEYAH 3:20; HOSHEA 2:2-5; 3:1; 9:1]