Moses finds it difficult to trust God. He comes up with many excuses. Here is God's response:
1) Yahweh's Patience: God is incredibly patient with Moses- with all of his questions and objections. This should encourage us to come to him with our questions and yet also lead us to trust him and obey him.
2) Yahweh's Provision: God didn’t have to but he did provide for Moses far beyond what he even needed- signs, promises, help, assurances, etc. Whatever callings we’ve been given we can trust that God will provide everything we need for that calling.