<p>10:16 <em>This is the covenant that I will make with them after those days, says the Lord: I will put My laws into their hearts, and on their minds I will write them</em>- As noted on :14, the Lord's sacrifice enables us to not only be forgiven, but to be perfected / matured, and to be &quot;made&quot; His footstool. This process of sanctification and maturing is achieved by the work of the Spirit in our hearts. The context of the Jeremiah quotation is God's acceptance of Israel's continued disobedience and plan to insert His laws into their hearts; to not only forgive them (:17), but to change them. It is the Spirit which sanctifies in the heart; the sanctification of the Spirit is something we must allow to be done to us rather than seeking to make ourselves clean by rituals (1 Cor. 6:11; 1 Thess. 5:23; 2 Thess. 2:13; 1 Pet. 1:2). By resisting this sanctifying power, we are despising the gift or grace of the Spirit (10:29). No amount of ritual obedience can change our hearts; we must allow the Lord's Spirit to do this. &quot;Sanctify&quot; in Greek is a form of the word &quot;Holy&quot;; the Holy Spirit is in essence the Spirit or power which makes our spirit holy / sanctified. To understand this is fundamental to understanding the function of the Holy Spirit in our lives today.</p>