Psalm 139:14-16 (ESV)
I praise you, for I am fearfully and wonderfully made. Wonderful are your works; my soul knows it very well. My frame was not hidden from you, when I was being made in secret, intricately woven in the depths of the earth. Your eyes saw my unformed substance; in your book were written, every one of them, the days that were formed for me, when as yet there was none of them.

Romans 12:4-5 (NLT)
Just as our bodies have many parts and each part has a special function, so it is with Christ’s body. We are many parts of one body, and we all belong to each other.