Is the LORD, YAHWEH, not our maker and creator? And if HE is, would HE not know what we can or can not do? If that’s the case, then why do we fear by saying we can not do what HE has asked us to do? Is HE not able to help us overcome challenges or fulfill every mission HE sends us on? Know that our LORD is always with us and will help us achieve and/or be successful in all HE asks us to do or to be victorious wherever HE needs us to go. Just like HE did for Moses.HE definitely will be upset if we keep saying no to what HE has asked us to do. So don’t be like Moses and doubt or fear in that way by saying you can not go speak/preach for HIM.
Exodus 4:10-17 Then Moses said to the Lord, “O my Lord, I am not eloquent, neither before nor since You have spoken to Your servant; but I am slow of speech and slow of tongue.” So the Lord said to him, “Who has made man’s mouth? Or who makes the mute, the deaf, the seeing, or the blind? Have not I, the Lord? Now, therefore, go, and I will be with your mouth and teach you what you shall say.” But he said, “O my Lord, please send by the hand of whomever else You may send.” So the anger of the Lord was kindled against Moses, and He said: “Is not Aaron the Levite your brother? I know that he can speak well. And look, he is also coming out to meet you. When he sees you, he will be glad in his heart. Now you shall speak to him and put the words in his mouth. And I will be with your mouth and with his mouth, and I will teach you what you shall do. So he shall be your spokesman to the people. And he himself shall be as a mouth for you, and you shall be to him as God. And you shall take this rod in your hand, with which you shall do the signs.” https://bible.com/bible/114/exo.4.10-17.NKJV
1 John 5:4 For everyone born of God is victorious and overcomes the world; and this is the victory that has conquered and overcome the world—our [continuing, persistent] faith [in Jesus the Son of God].https://bible.com/bible/1588/1jn.5.4.AMP
Matthew 28:16-20 Now the eleven disciples went to Galilee, to the mountain which Jesus had designated. And when they saw Him, they worshiped Him; but some doubted [that it was really He]. M Jesus came up and said to them, “All authority (all power of absolute rule) in heaven and on earth has been given to Me. Go therefore and make disciples of all the nations [help the people to learn of Me, believe in Me, and obey My words], baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe everything that I have commanded you; and lo, I am with you always [remaining with you perpetually—regardless of circumstance, and on every occasion], even to the end of the age.”https://bible.com/bible/1588/mat.28.16-20.AMP