Then the Lord’s anger burned against Moses and he said, “What about your brother, Aaron the Levite? I know he can speak well. He is already on his way to meet you, and he will be glad to see you.”
Exodus 4:14 New International Version (NIV)
Moses and Aaron brought together all the elders of the Israelites, and Aaron told them everything the Lord had said to Moses. He also performed the signs before the people, and they believed.
Exodus 4:30-31a (NIV)
Then the Lord said to Moses, “See, I have made you like God to Pharaoh, and your brother Aaron will be your prophet.”
Exodus 7:1 (NIV)
Moses and Aaron did just as the Lord commanded them.
Exodus 7:6
The Lord said to Moses and Aaron…
Exodus 7:8
Make sacred garments for your brother Aaron to give him dignity and honor. Tell all the skilled workers to whom I have given wisdom in such matters that they are to make garments for Aaron, for his consecration, so he may serve me as priest.
Exodus 28:2-3 (NIV)
When the people saw that Moses was so long in coming down from the mountain, they gathered around Aaron and said, “Come, make us gods who will go before us. As for this fellow Moses who brought us up out of Egypt, we don’t know what has happened to him.”
Exodus 32:1 (NIV)
Aaron answered them, “Take off the gold earrings that your wives, your sons and your daughters are wearing, and bring them to me.” So all the people took off their earrings and brought them to Aaron. He took what they handed him and made it into an idol cast in the shape of a calf, fashioning it with a tool. Then they said, “These are your gods, Israel, who brought you up out of Egypt.” When Aaron saw this, he built an altar in front of the calf and announced, “Tomorrow there will be a festival to the Lord.” So the next day the people rose early and sacrificed burnt offerings and presented fellowship offerings. Afterward they sat down to eat and drink and got up to indulge in revelry.
Exodus 32:2-6 (NIV)
I do not understand what I do. For what I want to do I do not do, but what I hate I do. And if I do what I do not want to do, I agree that the law is good. As it is, it is no longer I myself who do it, but it is sin living in me. For I know that good itself does not dwell in me, that is,
in my sinful nature. For I have the desire to do what is good, but I cannot carry it out. For I do not do the good I want to do, but the evil I do not want to do—this I keep on doing. Now if I do what I do not want to do, it is no longer I who do it, but it is sin living in me that does it.
Romans 7:15-20 (NIV)