Deuteronomy 21:16-17

21:16 Then it shall be, when he maketh his sons to inherit [that] which he hath, [that] he may not make the son of the beloved firstborn before the son of the hated, [which is indeed] the firstborn: 21:17 But he shall acknowledge the son of the hated [for] the firstborn, by giving him a double portion of all that he hath: for he [is] the beginning of his strength; the right of the firstborn [is] his.

Psalms 16:5-6

16:5 The LORD [is] the portion of mine inheritance and of my cup: thou maintainest my lot. 16:6 The lines are fallen unto me in pleasant [places]; yea, I have a goodly heritage.

Psalms 17:14

17:14 From men [which are] thy hand, O LORD, from men of the world, [which have] their portion in [this] life, and whose belly thou fillest with thy hid [treasure]: they are full of children, and leave the rest of their [substance] to their babes.