The "altar" of God is the sacrificial life of all the Righteous since the beginning of history, who revealed to the nations the true way of life in the selfless fulfillment of God's Commandments, as well as by proclaiming to the nations the Truth of God's Will.  

"Sacrificer" is also every man who fulfills God's Commandments, his life sacrificed for the service of God, for the good, for the good of others, for the accomplishment of justice, for the attainment of a life of righteousness.

Negative Meaning:

"Sacrificers" false is fanatical, blind, false faith of man, expressed in various rituals, in serving religious, political and other idols, idols, in following ideologies, false doctrines, dogmas, which are contrary to the Will of God as set forth in the Scriptures of the Prophets and the Teachings of Jesus Christ.