He saw that the Israelites were so insecure so they went to other Gods when they didn't like the answers God gave them. Remember the story of Moses? Moses went to the mountain for 40 days and told his people to wait for him. When he returned, he found the people worshipping Baal and they had made a golden calf. It was all because they were impatient and insecure. They also had little faith.

God did warn them. One such occasion was through His prophet Isaiah when he said at Isaiah 44:9-17:  "The formers of the carved image are all of them an unreality, and their darlings themselves will be of no benefit; and as their witnesses they see nothing and know nothing, in order that they may be ashamed. Who has formed a god or cast a mere molten image? Of no benefit at all has it been.  Look! All his partners themselves will be ashamed, and the craftsmen are from earthling men. They will all of them collect themselves together. They will stand still. They will be in dread. They will be ashamed at the same time.  As for the carver of iron with the billhook, he has been busy [at it] with the coals; and with the hammers he proceeds to form it, and he keeps busy at it with his powerful arm. Also, he has become hungry, and so without power. He has not drunk water; so he gets tired. As for the wood carver, he has stretched out the measuring line; he traces it out with red chalk; he works it up with a wood scraper; and with a compass he keeps tracing it out, and gradually he makes it like the representation of a man, like the beauty of mankind, to sit in a house. There is one whose business is to cut down cedars; and he takes a certain species of tree, even a massive tree, and he lets it become strong for himself among the trees of the forest. He planted the laurel tree, and the pouring rain itself keeps making it get big.  And it has become [something] for man to keep a fire burning. So he takes part of it that he may warm himself. In fact he builds a fire and actually bakes bread. He also works on a god to which he may bow down. He has made it into a carved image, and he prostrates himself to it.  Half of it he actually burns up in a fire. Upon half of it he roasts well the flesh that he eats, and he becomes satisfied. He also warms himself and says: “Aha! I have warmed myself. I have seen the firelight.”  But the remainder of it he actually makes into a god itself, into his carved image. He prostrates himself to it and bows down and prays to it and says: “Deliver me, for you are my god.” God knew the idols were pieces of wood! Nothing more than that. These blocks of wood posed no threat to God, they were not real. They were though being used by foolish people who gave God's honor to such useless idols. Behind all of this was God's very real enemy Satan, who was redirecting the peoples' worship away from the Living God. Today one "idol" that Satan frequently uses is money - the love of money, materialism.

It is the predatory nature of Abrahamic religions that they cannot abide the existence of other faiths. In my view, the Israelites were rightly clinging to their ancestral beliefs rather than submit to the harrasment of the Yawist establishment.