Acts 7:34-35
I have seen, I have seen the affliction of my people which is in Egypt, and I have heard their groaning, and am come down to deliver them. And now come, I will send thee into Egypt.  This Moses whom they refused, saying, Who made thee a ruler and a judge? the same did God send to be a ruler and a deliverer by the hand of the angel which appeared to him in the bush.

What other people think about us doesn’t change what God would have us to be.  Moses had been refused, but God used him anyway.  He sent him to stand before Pharaoh.  He sent him to lead the people out of Egypt.  He gave him the law.  He used him to bring the nation to the brink of the promised land.  So Moses became what God intended him to be—the ruler and the deliverer.  He became something more than he had been.  He made a choice to believe God, and so he saw God move mightily through him.

We would do much better in our own lives if we’d let God define who we are and who we become instead of everybody around us.  Over the course of our lives, there will be many who have an opinion about what we should and shouldn’t do, who we can and can’t be, what we will or won’t accomplish.  But truthfully, God has the final say in those kinds of things.  He is the one who empowers us to be what we weren’t before.  He is the one who enables us to do something we couldn’t have done.  He establishes His plan for us and then works through us to carry it out.

Sometimes we have to wait for God’s perfect timing.  Moses didn’t go right then and become the leader of Israel.  He had to take some time to learn and grow out in the wilderness with his sheep before he’d ever shepherd the people.  Sometimes God will reveal His will for us, but it won’t be fulfilled right away.  Often He’ll take us on a bit of a journey first to get us properly prepared, to do some work in us, to shape us and mold us until everything is ready for His plan to move forward.

Let’s not be discouraged by the scoffers and the naysayers.  The only opinion that should really matter is God’s.  When He has called us to something, let’s not allow anyone to dissuade us from embracing that call in our lives.  When He wants to use us, let’s simply allow Him to do so no matter how long it takes or what has to happen to get us to that position.  When we’re willing to trust Him and willing to obey, He will make us into everything He always wanted us to be.