Melchizedek didn’t trace his family line from Levi, but he still collected a tenth from Abraham. Melchizedek blessed the one who had received the promises.
Abraham and his family received a promise that he would inherit the world, but that wasn’t because he obeyed the law. It was because of his faith, which made him right with God.
This Melchizedek was the king of Salem and a priest of God Most High. When Abraham was coming back from winning a battle against a group of kings, Melchizedek met him and blessed him.
It’s the same with the promises that God made to Abraham and to his seed. Scripture doesn’t say, “and to your seeds.” That would mean many people. It says, “and to your seed.” That means one person—Christ.
They’ve been adopted as God’s children. God’s glory belongs to them, and so do the covenants. They received the law and they were taught to worship in the temple. They were given the promises,
The words the prophets spoke and the covenant God made with your people long ago are meant for you too. God said to Abraham, ‘All the nations on the earth will be blessed through your children.’
All of these people were still living by faith when they died. They didn’t receive the things God had promised; they only saw them and welcomed them from a long way off. They admitted that they were outsiders and strangers on earth.