'Marrow' in the Bible

His vats are full [with] milk and the marrow of his bones is moist.

And on this mountain Yahweh of hosts will make for all peoples a {rich feast}, a feast of aged wines, fat filled with marrow, filtered aged wine.

For the word of God [is] living and active and sharper than any double-edged sword, and piercing as far as the division of soul and spirit, both joints and marrow, and able to judge the reflections and thoughts of the heart.