Leviticus 11:44

For I am the LORD your God: you shall therefore sanctify yourselves, and you shall be holy; for I am holy: neither shall you defile yourselves with any manner of creeping thing that creeps upon the earth.
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Caesarius of Arles

AD 542
Pious souls of the Lord, what the Lord admonishes us is not to be considered merely in passing, for he says, “Be holy because I am holy.” Although this term properly belongs to all the Christian people, according to what blessed Peter says, “You, however, are a chosen race, a royal priesthood, a holy nation,” this term seems particularly to apply to all priests in a special way. In all the letters which are addressed to the Lord’s priests by any men whatsoever, it is specially indicated that they are holy. Since then this term is applied to us, we ought to inquire what precisely is its meaning. It is only through Greek that the interpretation of this word holy can be discovered. For agios is the Greek for “holy,” and agios has the meaning “not of the earth.” Therefore if we are more solicitous for heavenly things than for those of earth, this term is not unfittingly applied to us.

George Leo Haydock

AD 1849
Holy, and detest the uncleanness of the Gentiles, in their sacrifices and feasts. (St. Augustine, City of God vi. 7.)


AD 420
“Be holy, says the Lord, for I am holy.” The apostles boasted that they had left all things and had followed the Savior. We do not read that they left anything except their ship and their nets; yet they were crowned with the approval of him who was to be their judge. Why? Because in offering up themselves they had indeed left all that they had.

Leo of Rome

AD 461
He himself says, “Be holy, for I am holy,” that is to say, choose me and keep away from what displeases me. Do what I love; love what I do. If what I order seems difficult, come back to me who ordered it, so that from where the command was given help might be offered. I who furnished the desire will not refuse support. Fast from contradiction, abstain from opposition. Let me be your food and drink. None desire in vain what is mine, for those who stretch out toward me seek me because I first sought them.

Knowing this first, that no prophecy of the scripture is of any private interpretation - 2 Peter 1:20

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