Psalm 16:5

LORD, you alone are my portion and my cup; you make my lot secure.

LORD, you alone are my portion 
Leviticus 2:1-2  " 'When anyone brings a grain offering to the LORD, their offering is to be of the finest flour. They are to pour olive oil on it, put incense on it and take it to Aaron's sons the priests. The priest shall take a handful of the flour and oil, together with all the incense, and burn this as a memorial portion on the altar, a food offering, an aroma pleasing to the LORD.' "

and my cup 
Psalm 23:5  You prepare a table before me in the presence of my enemies. You anoint my head with oil; my cup overflows.
Psalm 75:8  In the hand of the LORD is a cup full of foaming wine mixed with spices; he pours it out, and all the wicked of the earth drink it down to its very dregs.
Psalm 116:13  I will lift up the cup of salvation and call on the name of the LORD.
Isaiah 51:17  Awake, awake! Rise up, Jerusalem, you who have drunk from the hand of the LORD the cup of his wrath, you who have drained to its dregs the goblet that makes people stagger.
Lamentations 4:21  Rejoice and be glad, Daughter Edom, you who live in the land of Uz. But to you also the cup will be passed; you will be drunk and stripped naked.
Ezekiel 23:32-34  "This is what the Sovereign LORD says: You (Jerusalem) will drink your sister's cup, a cup large and deep; it will bring scorn and derision, for it holds so much. You will be filled with drunkenness and sorrow; the cup of ruin and desolation, the cup of your sister, Samaria. You will drink it and drain it dry and chew on its pieces--and you will tear your breasts. I have spoken, declares the LORD."
Habakkuk 2:16  "You (Babylonia) will be filled with shame instead of glory. Now it is your turn! Drink and let  your nakedness be exposed! The cup from the LORD's right hand is coming around to you, and disgrace will cover your glory."

you make my lot secure 
Numbers 26:55  "Be sure that the land is distributed by lot. What each group inherits will be according to the names for its ancestral tribe."
Job 31:2  "For what is our lot from God above, our heritage from the Almighty on high?"
Ecclesiastes 3:22  So I saw that there is nothing better for a person than to enjoy their work, because that is their lot. For who can bring them to see what will happen after them?

(parentheses are mine)

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. 
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