Whatever God calls you to do is something He wants to do through you. God will never call you to do anything that will not require His help to do. Isaiah 26:12 in the NIV Bible captures it aptly : “LORD, you establish peace for us; all that we have accomplished you have done for us.” Compare the following accounts about Moses : “And seeing one of them suffer wrong, he defended and avenged him who was oppressed, and struck down the Egyptian. For he supposed that his brethren would have understood that God would deliver them by his hand, but they did not understand.” (Acts 7:24-25). Moses was aware  (probably a bit arrogantly) that God had called him to deliver Israel. Now compare his earlier attitude, as refered to above, with his attitude later, as expressed in the following words : “Come now, therefore, and I will send you to Pharaoh that you may bring My people, the children of Israel, out of Egypt.” But Moses said to God, “Who am I that I should go to Pharaoh, and that I should bring the children of Israel out of Egypt?”” (Ex 3:10-11).
    It is evident, from the foregoing, that certain painful but necessary attitudinal changes had taken place in Moses, between when he made his failed attempt at delivering Israel and when God revealed Himself to him, and commissioned him to rescue Israel. In the first scenario, his self confidence and pride dictated his approach and actions. While in the second scenario, his exaggerated sense of self importance had been deflated, leaving him with an acute awareness of his human inadequacies. Consider his response to God, carefully : “But Moses said to God, “Who am I that I should go to Pharaoh, and that I should bring the children of Israel out of Egypt?”” (Ex 3:10-11). Considering that Stephen describes Moses as a man who, …”was learned in all the wisdom of the Egyptians, and was mighty in words and deeds.” (Acts 7:22), it is clear that the response Moses gave God reflects the result of a series of humbling experiences he had gone through.
    Firstly, he had lost his royal heritage with its attendant privileges. Secondly, he was a wanted man, who had murdered an official of Egypt’s royal government. Thirdly, his kinsmen, for whose sake he had gone to all that trouble, had rejected him. Fourthly, Moses, as a fugitive from justice served his father-in-law in an occupation that was far beneath his qualifications. In addition to all of the above, his current circumstances, in which it seemed God had forgotten Him, constantly reminded him of failure. To crown it all, there seemed to have been no foreseeable end to his troubles. Can you relate to the hopelessness Moses felt at that point in his life? Are there times when the unspoken sentiments you have match those Zion expressed sometime in her history?   “But Zion said, “The Lord has forsaken me, And my Lord has forgotten me.”” (Isa 49:14). However, God’s response to Zion (which equally applies to you) is, ““Can a woman forget her nursing child, And not have compassion on the son of her womb? Surely they may forget, Yet I will not forget you. See, I have inscribed you on the palms of My hands; Your walls are continually before Me.” (Isa 49:15-16). Rest assured, therefore,  that God watches over you.
        Man’s extremity is God’s opportunity. God’s wisdom and strength begin where human wisdom and strength end: “… the foolishness of God is wiser than men, and the weakness of God is stronger than men.” (1Cor 1:25). Like Moses, however, most of us do not realise this truth until we have failed woefully. Nonetheless, lessons learnt from past failures are pearls of great price. Mistakes are inevitable realities of human existence; no one can avoid them. The journey to success is fraught with many unpleasant, but often, necessary experiences. Mistakes are the first in the sequence of such experiences. Then, usually, failure follows, which leads to rejection and then to frustration etc. However, what is of utmost importance is what you learn from those experiences, however unpleasant they are. If you observe their dynamics carefully you will learn something useful, which if embraced and applied, will eventually lead to success. Once you have learnt the lesson in humility before the Lord (1Pet 5:6-7) that God wants you to learn, then like Moses, you are ready for the assignment God has for you. Shalom.