The answer is: Made a molten calf

Deut 9:15-16

While Moses was away receiving the Ten Commandments atop Mount Sinai, the Israelites' impatience and fear kicked in. Instead of remaining faithful, they instructed Aaron to create a molten calf, a shocking act of rebellion against Yahweh, who had just liberated them from slavery in Egypt. This mishap illustrates a common theme throughout the Bible: the struggle between faith and human frustration.

Interestingly, the golden calf was not an entirely new concept for the Israelites. Surrounded by Egyptian culture, they were familiar with idolatry; the calf likely represented a deity associated with fertility and wealth in various ancient Near Eastern religions. This echoes throughout biblical tradition, where God continually emphasizes the sinfulness of idol worship.

Additionally, have you ever noticed how similar this situation is to other Biblical characters waiting on God? Abraham and Sarah also lost patience and took matters into their own hands when they had Ishmael instead of waiting for Isaac. These narratives reflect universal feelings of doubt amidst delay! These instances serve as reminders that patience in the face of uncertainty is a revered, yet difficult, spiritual practice.

Moses, upon descending the mountain and witnessing this revolt, broke the tablets he had just received in a profound fit of anger—which further layered this incident with depth and moral rigor. In a way, it reflects how easily humanity can lapse back into old ways, needing a fresh commitment to their faith. Overall, the story cautions against giving in to despair when waiting on divine fulfilment.