A number of quite serious sins are exposed in this particular issue, perhaps the most serious being their lack of faith in God's providence. This sin is driven by an arrogant self-concern that forgets that God is working out a purpose and plan in us and overseeing everything in our lives. He bought and paid for us with Christ's sacrifice, and we vowed to submit to His authority when we gave Him our lives. What He provides to those of faith within that purpose is more than fair. In fact, it is usually quite generous.
He promises to supply the faithful with their every need, but in Israel's fearful and fickle discontentment, they did not seek Him to understand what He was doing. Instead, they sought something different from what He was providing in terms of experiences within the relationship. This drive for fulfillment in variety remains within the Israelitish people.
Though the emphasis under the New Covenant has shifted to the spiritual, God shows us in numerous ways that His desire is for His children to be unified in one system—His. The manna provided under the Old Covenant represents God's desire that we are to be strengthened in His way only through His Word.
Uniformity with His way is illustrated in several ways in the Old Testament. For example, the priests could use coals only from one particular fire for the incense offering. They had to be uniform in the clothing they wore when officiating at the one altar God permitted in only one place in Israel. In addition, Israel was allowed only one festival site, Jerusalem.
Consider how God concludes His instructions in Deuteronomy 12, which limited Israel's sacrifices to Him to one location:
When the LORD your God cuts off from before you the nations which you go to dispossess, and you displace them and dwell in their land, take heed to yourself that you are not ensnared to follow them, after they are destroyed from before you, and that you do not inquire after their gods, saying, "How did these nations serve their gods? I also will do likewise." You shall not worship the LORD your God in that way; for every abomination to the LORD which He hates they have done to their gods; for they burn even their sons and daughters in the fire to their gods. Whatever I command you, be careful to observe it; you shall not add to it nor take away from it. (verses 29-32)
This instruction is specifically aimed to stifle Israel's proclivity to look into foreign religions. The lesson is "curiosity killed the cat"! Deuteronomy 23:6 adds concerning the heathen, "You shall not seek their peace nor their prosperity all your days forever." In Ezra 9:12, where this also appears, God tells them to keep themselves so separated that they were never to make any kind of alliance with neighboring peoples!
As the Bible shows, Israel did not heed God's counsel. In stubbornness, she sought fulfillment in variety and became a great whore.
John W. Ritenbaugh
The Beast and Babylon (Part Six): The Woman's Character