'Marrow' in the Bible
His sides are full of fat, and the marrow of his bones is moistened;
My soul is satisfied as with marrow and fatness, and my mouth shall praise thee with joyful lips.
And in this mountain will Jehovah of hosts make unto all peoples a feast of fat things, a feast of wines on the lees, of fat things full of marrow, of wines on the lees well refined.
For the word of God is living and operative, and sharper than any two-edged sword, and penetrating to the division of soul and spirit, both of joints and marrow, and a discerner of the thoughts and intents of the heart.