John Chrysostom
"Let us draw near," he says, "with a true heart." Who are those who draw near? Those who are holy by faith and by spiritual service. "With a true heart, in the full assurance of faith," because here there is nothing visible. The priest, the sacrifice, and the altar are invisible.
Even there the priest was not visible, for he stood within, while all the rest, the whole people, were outside. But here the Apostle expresses not only that our Priest entered the sanctuary. He indicated this by the words, "a great Priest over the house of God." He also says that we too enter. Therefore he says, "in full assurance of faith."
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One may believe with doubt. Even now there are many people who say that there will be a resurrection for some, but not for others. This is not fullness of faith. We must believe as firmly as we do concerning visible things, and even much more firmly. In visible things we can be mistaken, but not there. Here we perceive by sense, but there by the spirit.
"Having our hearts sprinkled clean from an evil conscience." Here he proves that not only faith is required, but also a virtuous life, and that one should be conscious of nothing evil in oneself. Those who do not conduct themselves wholly in this way are not admitted into the sanctuary. It is holy, and the Holy of Holies. Therefore no unclean person enters here.
They washed the body, but we wash the conscience. Even now we must be washed, but now virtuously. "And our bodies washed with pure water." Here he speaks of the laver of Baptism, which cleanses not the body, but the soul.
What does "let us draw near with a true heart" mean? It means without hypocrisy: "Woe to fearful hearts and weakened hands" (Sir 2:12). Let there be no falsehood among you, he says. Let us not say one thing and think another, for this is falsehood. Let us not be fainthearted, for this is not proper to a true heart. Faintheartedness comes from unbelief.
How shall we attain this? If we have full assurance of faith within us. "Having our hearts sprinkled clean from an evil conscience." Why did he not say "cleansed," but "sprinkled"? To show the difference between the sprinklings, and that one is from God while the other is from us. To sprinkle and wash the conscience is from God. To draw near sincerely and with full assurance of faith is from us.
Then the Apostle strengthens faith by pointing to the truthfulness of Him Who promised. What does "and our bodies washed with pure water" mean? He is speaking either of water that makes pure, or of water that has no blood.