'Substance' in the Bible

From men who are thy hand, O Jehovah, from men of this age: their portion is in this life, and their belly thou fillest with thy hid treasure; they have their fill of sons, and leave the rest of their substance to their children.

Thine eyes did see my unformed substance, and in thy book all my members were written; during many days were they fashioned, when as yet there was none of them.