Can anyone else not wrap their brain around this:

But now, thus says the LORD, your Creator, O Jacob,
And He who formed you, O Israel,
"Do not fear, for I have redeemed you;
I have called you by name; you are Mine!
"When you pass through the waters, I will be with you;
And through the rivers, they will not overflow you
When you walk through the fire, you will not be scorched,
Nor will the flame burn you.
"For I am the LORD your God,
The Holy One of Israel, your Savior;
I have given Egypt as your ransom,
Cush and Seba in your place.
"Since you are precious in My sight,
Since you are honored and I love you,
I will give other men in your place and other peoples in exchange for your life.
"Do not fear, for I am with you"

Isaiah 43.1-5