Jeremiah described the permanent nature of sin when he said, “The sin of Judah is written with a pen of iron, and with the point of a diamond: it is graven upon the tablet of their heart” (Jeremiah 17:1). The tablet of our heart can be thought of as the place inside our mind where we record memories. Sometimes, we would like to forget things that we have done or things that have been done to us, but the horrible memories won’t go away. As with the recording of the Ten Commandments, Jeremiah was letting the people of Judah know that God’s legal system was permanent and all offenses would have to be dealt with at some point.
The word Jeremiah used to identify sin was chattâ’th (khat – tawth´), which means “an offense and its penalty” (2403). “The basic nuance of this word is ‘sin’ conceived as missing the road or mark…Men are to return from ‘sin’ which is a path, a life-style, or act of deviating from that which God has marked out.” The key to understanding God’s expectation regarding sin was the concept of repentance, or in Hebrew, shuwb (shoob). “The basic meaning of this verb is movement back to the point of departure” (7725).
God expected his people to sin, that’s why he established a way for sins to be forgiven. What most people didn’t seem to understand was that the only way sins could be forgiven was to confess them to God. Jeremiah said, “Blessed is the man that trusteth in the LORD, and whose hope the LORD is” (Jeremiah 17:7). The essence of what Jeremiah was saying was that a person had to have the kind of confidence in the LORD that enabled him to confide in the LORD something that could be counted against him as sin. The result of a confession of sin was the restoration of God’s blessing.
Jeremiah stated, “The heart is deceitful above all things, and desperately wicked: who can know it? I the LORD search the heart, I try the reins, even to give every man according to his ways, and according to the fruit of his doings” (Jeremiah 17:9). Jeremiah’s declaration made it clear that God had access to the inner being and could discern the motives behind actions. Even though the people of Judah thought they were sinless, God’s judgment determined that everyone had broken his commandments.