Matthew Poole and continuators on Hebrews 10:22

22 Let us draw near with a true heart, in full assurance of faith , having our hearts d sprinkled from an evil conscience, and our bodies washed with pure water.

This contains the Duty grounded on, and encouraged to by the former Priviledges, viz, the spiritual motion of his Church, using Christ for their coming home to God, in Prayer, and all parts of Worship and Conversation; See ch. 4.16. and 7.25.

With Sincerity and Integrity of Heart, both as it is the Subject of Actions, and exercising them as such in all Acts of Worship and Service unto God, when the Mind and Heart is fixed to perform all strictly, according to God's Will, for matter and manner, so as to reach him Glory, and to obtain from him a Blessing, Psal 37.31.

Believing in, and being fully assured and confident of Christ's Merits and God's Promise, which is true, faithful, and immutable to all, who perform the Duty required by it, ch. 6.11. Colos. 2.2. and Iames 1.5, 6, 7. having the Soul in all its rational Faculties, the inward Man, the prime Efficient of all Actions, and here under Bond to the Law of God, purged and cleansed, alluding to the Aaronical Right of purifying by sprinkling of Blood, as Souls are to be now by the Blood of Christ when they are justified, Rom. 3.23, 24, 25, 26. that God may admit them into his presence, hear them when they worship him, v. 19, 20. so as they may be free from an accusing or condemning Conscience, on the account of the Guilt of Sin gnawing them, and making them obnoxious to Punishment; as also of the Stain and Pollution of Sin making them unfit for any Communion with God, ch. 9.14.

The Body (as the Priests were under the Law washed before their Service) is the outward Man, which is as well as the Soul to the sanctified by the holy Spirit, and cleansed from all filthiness of Flesh: These corrupt Members of the old Man must be put off, and mortified by the Spirit of God, before they can be fit to approach to worship him, 1 Cor. 6.11, 19, 20. 2 Cor. 7.1. Ezek. 36.25. 1 Ioh. 3.3.

Marginal references: Eph. 3.12.