1. A ROYAL PRIESTHOOD 6 For in Scripture it says:
“See, I lay a stone in Zion,     a chosen and precious cornerstone, and the one who trusts in him     will never be put to shame.”[b]
7 Now to you who believe, this stone is precious. But to those who do not believe,
“The stone the builders rejected     has become the cornerstone,”
8 and, “A stone that causes people to stumble     and a rock that makes them fall.”[d]
They stumble because they disobey the message—which is also what they were destined for.

2. “But you are a chosen people
“But you are a chosen people.” a royal priesthood, a holy nation, a people belonging to God, that you may declare the praises of him who called you out of darkness into his wonderful light. Once you were not a people, but now you are the people of God; once you had not received mercy, but now you have received mercy.

3. Look at what Deuteronomy 7:6 said about Israel: “For you are a people holy to the LORD your God. The LORD your God has chosen you out of all the peoples on the face of the earth to be his people, his treasured possession”

4. For he chose us in him before the creation of the world to be holy and blameless in his sight. In love he predestined us to be adopted as his sons through Jesus Christ, in accordance with his pleasure and will—to the praise of his glorious grace, which he has freely given us in the One he loves Ephesians 1:4–6

5. 3 Then Moses went up to God, and the Lord called to him from the mountain and said, “This is what you are to say to the descendants of Jacob and what you are to tell the people of Israel: 4 ‘You yourselves have seen what I did to Egypt, and how I carried you on eagles’ wings and brought you to myself. 5 Now if you obey me fully and keep my covenant, then out of all nations you will be my treasured possession. Although the whole earth is mine, 6 you[a] will be for me a kingdom of priests and a holy nation.’ These are the words you are to speak to the Israelites.”

6. But you are a chosen people, a royal priesthood, a holy nation, a people belonging to God, that you may declare the praises of him who called you out of darkness into his wonderful light. Once you were not a people, but now you are the people of God; once you had not received mercy, but now you have received mercy. 1 Peter 2:9–10
Do you think that they might be talking about the same thing?
Royal Priesthood

7. 14 For it is clear that our Lord descended from Judah, and in regard to that tribe Moses said nothing about priests. 15 And what we have said is even more clear if another priest like Melchizedek appears, 16 one who has become a priest not on the basis of a regulation as to his ancestry but on the basis of the power of an indestructible life. 17 For it is declared:
“You are a priest forever,     in the order of Melchizedek.”[a]
The Lord has sworn     and will not change his mind: “You are a priest forever,     in the order of Melchizedek.” PSALM 110

8. So its not suprising that Paul as well as Peter sees the significance of what priestly ministry means under the new covenant. He shared it with the Roman Christians. Romans 12. I Urge you brothers in view of God’s mercy to offer your bodies as living sacrifices, holy and pleasing to God – this is your spiritual act of worship.’

9. 1 CORINTHIANS 6
6 If any of you has a dispute with another, do you dare to take it before the ungodly for judgment instead of before the Lord’s people? 2 Or do you not know that the Lord’s people will judge the world? And if you are to judge the world, are you not competent to judge trivial cases? 3 Do you not know that we will judge angels? How much more the things of this life!

10. Listen to what he said, “As for me, far be it from me that I should sin against the LORD by failing to pray for you. And I will teach you the way that is good and right” (1 Sam 12:23).
First Timothy 2:1–2 commands believers to make intercession for everyone, for kings and all authorities that we may live peaceful and godly lives. Praying for everyone is a tremendous amount of work. It’s a job for priests, whom we have been called to be.
. Israel the nation was called to be a nation of priests, even though the specific priestly role was reserved for the family of Aaron.

11. Deuteronomy 7:6 says, “For you are a people holy to the LORD your God
Deuteronomy 7:6 says, “For you are a people holy to the LORD your God. The LORD your God has chosen you out of all the peoples on the face of the earth to be his people, his treasured possession”
They needed to know they were chosen as God’s special possession in the earth.
We also see this reality taught in the book of Ephesians. Look at what Ephesians 5:18 says, “I pray also that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in the saints”