No. Read Hebrews chapter 7, it will explain that fully.

So… basically, there’s two priesthoods. The Levitical, which condemns the world, and puts everyone under condemnation, and then the Melchizedek Priesthood, whom Jesus fulfilled.

So, why did Abraham have to sacrifice Isaac? That’s the question. And why did God not make him? Two good questions to ask, before we answer this question.

1. Abraham had to be taught what the price was for forgiveness. God’s only Son, like Abraham’s only son, needed to be sacrificed. But, God took Abraham to the threshold, and prevented him.

2. God prevented Abraham, to show that human sacrifice was unlawful, and Christ needed to pay for our sins. And how? By our slaughtering Him, and putting Him upon a cross.

So, with that being said, God promises Abraham a blessing on Isaac, that from Abraham’s Seed—who is Jesus—there will issue a seed who will bless all nations. And that’s Christ. And of course, after the Battle of Sidim, which is the first battle in recorded history—it’s the first clash of empires—Abraham meets the Priest Melchizedek, and that priest is whom Abraham offers a sacrifice to (not Isaac, but an animal; those are two separate events).

So, there’s two priesthoods, the one through Levi, by way of Aaron and Moses, which brought the law into being, and puts everyone, and every nation—including Israel—under condemnation for sin. And then you have the Law of Liberty, Zion—not Sinai—who is the Seed Christ Jesus. Whom, He is of a priesthood of Melchizedek, and that priesthood is established in an earlier covenant with Abraham. Because Abraham is about ten generations before Moses and Aaron.

So the Levitical Priesthood was for the Jews, for a specified time so they could have an Earthly kingdom, and Earthly reward. But when they failed, that covenant was annulled through Christ’s blood. But, that covenant is unchanging and everlasting, and it will punish all evildoers. Everyone who is not submitted under Christ, that law—as unfair as it is—will put every man, woman and child under the condemnation of death, unless they repent, and trust on the blood of Jesus. Because of sin.

And the law we follow now, is in Christ Jesus, the Sermon on the Mount and Romans 12–15, and of course the Fruits of the Spirit, and we’re to abstain from sin like is found in Romans 1 or Corinthians or Timothy. Basically, the law we follow is written in the Gospel. The Torah is still good for teaching… we can still look at it for common sense wisdom. But, the death penalty is annulled in Christ’s blood, therefore the sacrifice is in Christ Jesus, and the Law is in the Gospel, not the Old Testament. And if you follow the Old Testament law, you’re judged by those statutes, and therefore condemned by the prophets and the curse. Which the curse is nailed into Jesus, and is not something that we have to endure, unless we are found in unrepentant sin.