He answered, “I heard you in the garden, and I was afraid because I was naked; so I hid.”
Genesis 3:10 (NIV)After this, the word of the Lord came to Abram in a vision: “Do not be afraid, Abram. I am your shield, your very great reward.”
Genesis 15:1 (NIV)
If you study it from the beginning, you’ll see that Genesis 15 is speaking directly to the things of Genesis 3.
These are the first two instances of this word “afraid” in scripture.