Hebrews 10:19

Having therefore, brethren
As they were to the apostle, in a natural and civil sense, being Hebrews, as well as in a spiritual relation, being believers in Christ; which is observed, to testify his affection to them, and to engage their regard to the duties hereafter urged, particularly brotherly love, and to signify their common and equal right to the privilege next mentioned, which is

boldness to enter into the holiest by the blood of Jesus:
the place saints have boldness to enter into is heaven, called "the holiest", in reference to the holy of holies, in the tabernacle; which was a type of it, for the sacredness and invisibility of it, and for what was in it, went into it, or was brought thither; as the Shechinah, or divine Majesty, which resided there; the high priest who went into it once a year; the blood of sacrifices which was carried into it; the sweet incense; the ark of the testimony, in which was the law; and the mercy seat; all which were typical of Christ, his person, blood, sacrifice, righteousness, intercession, and the grace and mercy which come through him. Heaven was symbolically shut by the sin of man, when he was drove out of the garden of Eden; it was typically opened by the entrance of the high priest into the holy of holies, on the day of atonement; Christ has in person entered into it by his blood, and opened the way for his people; and believers in him may "enter" now, and they do, when they exercise grace on him, who is there, and when they come and present their prayers and praises to God by him; and they have now an actual right to enter into the place itself, and will hereafter enter in person: and the manner of their present entrance is, "with boldness"; which signifies their right unto it, the liberty granted them by God, and the liberty which they sometimes have in their own souls, and great courage and intrepidity of mind; which arises from a sense of remission of sins, as may be concluded from the connection of these words with the preceding; and is found to be true by experience; and such boldness is consistent with reverence, humility, and submission. The way of entrance is "by the blood of Jesus"; and which gives both entrance and boldness; for hereby sin is removed both from the sight of God, and the conscience of the believer; peace is made with God, and spoken to him; pardon is procured, law and justice satisfied, and neither to be feared, and the everlasting covenant confirmed.