We often are simply ignorant of the things we are afraid of. We don’t understand them or they remain mysterious to us in some way. Not knowing them or being familiar with them we are more likely to fear them. This is usually the basis of all superstitions. We’re afraid of black cats, walking under a ladder, stepping on cracks, etc. I heard someone once say that 95% of the time our fears are unfounded and have no true connection with reality. We fear things we really shouldn’t worry about. So God often says, “don’t be afraid” because the fear we have is unfounded.
That’s the way it was with Moses. He had fled from Egypt because Pharaoh intended to take his life after he murdered the Egyptian. In Midia, Moses started a new life for himself. When God called him to return to Egypt to Lead the Israelites to the promised land, Moses was afraid to return. We read in Exodus 4:19 (LB) “Before Moses left Midian, Jehovah said to him, Don’t be afraid to return to Egypt, for all those who wanted to kill you are dead.”
God had dealt with all who intended to harm him, he need not be afraid to do what God had called Him to do. It’s the same with us. God has dealt with the great enemy, the one who intends to harm us, so we don’t need to be afraid. Just go for it!